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Finding the Fourth Proportional to 29,781.60, 44,656.20 and 12,253.20

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Solution

The fourth proportional to 29,781.60, 44,656.20 and 12,253.20 is: 18,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,781.60 : 44,656.20 = 12,253.20 : x
  2. Step 2: Convert to fraction form
    29,781.60/44,656.20 = 12,253.20/x
  3. Step 3: Cross multiply
    29,781.60x = 44,656.20 × 12,253.20
  4. Step 4: Simplify right side
    29,781.60x = 547,181,349.84
  5. Step 5: Solve for x
    x = 547,181,349.84/29,781.60
  6. Step 6: Final answer
    x = 18,373.13

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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.