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Finding the Fourth Proportional to 8,232.68, 12,349.20 and 3,615.68

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Solution

The fourth proportional to 8,232.68, 12,349.20 and 3,615.68 is: 5,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,232.68 : 12,349.20 = 3,615.68 : x
  2. Step 2: Convert to fraction form
    8,232.68/12,349.20 = 3,615.68/x
  3. Step 3: Cross multiply
    8,232.68x = 12,349.20 × 3,615.68
  4. Step 4: Simplify right side
    8,232.68x = 44,650,755.46
  5. Step 5: Solve for x
    x = 44,650,755.46/8,232.68
  6. Step 6: Final answer
    x = 5,423.60

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Half scale
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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.