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Finding the Fourth Proportional to 42,491.87, 63,990.75 and 37,011.41

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Solution

The fourth proportional to 42,491.87, 63,990.75 and 37,011.41 is: 55,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,491.87 : 63,990.75 = 37,011.41 : x
  2. Step 2: Convert to fraction form
    42,491.87/63,990.75 = 37,011.41/x
  3. Step 3: Cross multiply
    42,491.87x = 63,990.75 × 37,011.41
  4. Step 4: Simplify right side
    42,491.87x = 2,368,387,564.50
  5. Step 5: Solve for x
    x = 2,368,387,564.50/42,491.87
  6. Step 6: Final answer
    x = 55,737.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.