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Finding the Fourth Proportional to 39,091, 58,636.50 and 15,711.97

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Solution

The fourth proportional to 39,091, 58,636.50 and 15,711.97 is: 23,567.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091 : 58,636.50 = 15,711.97 : x
  2. Step 2: Convert to fraction form
    39,091/58,636.50 = 15,711.97/x
  3. Step 3: Cross multiply
    39,091x = 58,636.50 × 15,711.97
  4. Step 4: Simplify right side
    39,091x = 921,294,928.91
  5. Step 5: Solve for x
    x = 921,294,928.91/39,091
  6. Step 6: Final answer
    x = 23,567.96

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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.