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Finding the Fourth Proportional to 8,748,395.60, 13,122,593.40 and 8,216,954.60

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Solution

The fourth proportional to 8,748,395.60, 13,122,593.40 and 8,216,954.60 is: 12,325,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748,395.60 : 13,122,593.40 = 8,216,954.60 : x
  2. Step 2: Convert to fraction form
    8,748,395.60/13,122,593.40 = 8,216,954.60/x
  3. Step 3: Cross multiply
    8,748,395.60x = 13,122,593.40 × 8,216,954.60
  4. Step 4: Simplify right side
    8,748,395.60x = 107,827,754,202,059.64
  5. Step 5: Solve for x
    x = 107,827,754,202,059.64/8,748,395.60
  6. Step 6: Final answer
    x = 12,325,431.90

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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.