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Finding the Fourth Proportional to 29,428.50, 40,617.22 and 17,489.54

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Solution

The fourth proportional to 29,428.50, 40,617.22 and 17,489.54 is: 24,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.50 : 40,617.22 = 17,489.54 : x
  2. Step 2: Convert to fraction form
    29,428.50/40,617.22 = 17,489.54/x
  3. Step 3: Cross multiply
    29,428.50x = 40,617.22 × 17,489.54
  4. Step 4: Simplify right side
    29,428.50x = 710,376,493.88
  5. Step 5: Solve for x
    x = 710,376,493.88/29,428.50
  6. Step 6: Final answer
    x = 24,139.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.