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Finding the Fourth Proportional to 57,045.72, 85,562.04 and 14,929.88

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Solution

The fourth proportional to 57,045.72, 85,562.04 and 14,929.88 is: 22,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,045.72 : 85,562.04 = 14,929.88 : x
  2. Step 2: Convert to fraction form
    57,045.72/85,562.04 = 14,929.88/x
  3. Step 3: Cross multiply
    57,045.72x = 85,562.04 × 14,929.88
  4. Step 4: Simplify right side
    57,045.72x = 1,277,430,989.76
  5. Step 5: Solve for x
    x = 1,277,430,989.76/57,045.72
  6. Step 6: Final answer
    x = 22,393.11

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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.