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Finding the Fourth Proportional to 8,477,496.60, 12,716,244.90 and 8,146,822.20

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Solution

The fourth proportional to 8,477,496.60, 12,716,244.90 and 8,146,822.20 is: 12,220,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477,496.60 : 12,716,244.90 = 8,146,822.20 : x
  2. Step 2: Convert to fraction form
    8,477,496.60/12,716,244.90 = 8,146,822.20/x
  3. Step 3: Cross multiply
    8,477,496.60x = 12,716,244.90 × 8,146,822.20
  4. Step 4: Simplify right side
    8,477,496.60x = 103,596,986,251,956.78
  5. Step 5: Solve for x
    x = 103,596,986,251,956.78/8,477,496.60
  6. Step 6: Final answer
    x = 12,220,233.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.