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Finding the Fourth Proportional to 62,419.70, 93,629.55 and 18,047.90

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Solution

The fourth proportional to 62,419.70, 93,629.55 and 18,047.90 is: 27,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,419.70 : 93,629.55 = 18,047.90 : x
  2. Step 2: Convert to fraction form
    62,419.70/93,629.55 = 18,047.90/x
  3. Step 3: Cross multiply
    62,419.70x = 93,629.55 × 18,047.90
  4. Step 4: Simplify right side
    62,419.70x = 1,689,816,755.45
  5. Step 5: Solve for x
    x = 1,689,816,755.45/62,419.70
  6. Step 6: Final answer
    x = 27,071.85

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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.