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Finding the Fourth Proportional to 66,060, 99,102.96 and 29,124

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Solution

The fourth proportional to 66,060, 99,102.96 and 29,124 is: 43,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,060 : 99,102.96 = 29,124 : x
  2. Step 2: Convert to fraction form
    66,060/99,102.96 = 29,124/x
  3. Step 3: Cross multiply
    66,060x = 99,102.96 × 29,124
  4. Step 4: Simplify right side
    66,060x = 2,886,274,607.04
  5. Step 5: Solve for x
    x = 2,886,274,607.04/66,060
  6. Step 6: Final answer
    x = 43,691.71

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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.