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Finding the Fourth Proportional to 29,339.61, 40,487.54 and 15,910.62

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Solution

The fourth proportional to 29,339.61, 40,487.54 and 15,910.62 is: 21,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,339.61 : 40,487.54 = 15,910.62 : x
  2. Step 2: Convert to fraction form
    29,339.61/40,487.54 = 15,910.62/x
  3. Step 3: Cross multiply
    29,339.61x = 40,487.54 × 15,910.62
  4. Step 4: Simplify right side
    29,339.61x = 644,181,784.12
  5. Step 5: Solve for x
    x = 644,181,784.12/29,339.61
  6. Step 6: Final answer
    x = 21,956.04

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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.