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Finding the Fourth Proportional to 29,337.72, 40,486.14 and 16,762.20

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Solution

The fourth proportional to 29,337.72, 40,486.14 and 16,762.20 is: 23,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,337.72 : 40,486.14 = 16,762.20 : x
  2. Step 2: Convert to fraction form
    29,337.72/40,486.14 = 16,762.20/x
  3. Step 3: Cross multiply
    29,337.72x = 40,486.14 × 16,762.20
  4. Step 4: Simplify right side
    29,337.72x = 678,636,775.91
  5. Step 5: Solve for x
    x = 678,636,775.91/29,337.72
  6. Step 6: Final answer
    x = 23,131.89

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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.