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Finding the Fourth Proportional to 62,476.70, 93,715.05 and 20,923.70

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Solution

The fourth proportional to 62,476.70, 93,715.05 and 20,923.70 is: 31,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,476.70 : 93,715.05 = 20,923.70 : x
  2. Step 2: Convert to fraction form
    62,476.70/93,715.05 = 20,923.70/x
  3. Step 3: Cross multiply
    62,476.70x = 93,715.05 × 20,923.70
  4. Step 4: Simplify right side
    62,476.70x = 1,960,865,591.69
  5. Step 5: Solve for x
    x = 1,960,865,591.69/62,476.70
  6. Step 6: Final answer
    x = 31,385.55

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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.