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Finding the Fourth Proportional to 58,869.71, 81,237.72 and 33,377.79

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Solution

The fourth proportional to 58,869.71, 81,237.72 and 33,377.79 is: 46,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,869.71 : 81,237.72 = 33,377.79 : x
  2. Step 2: Convert to fraction form
    58,869.71/81,237.72 = 33,377.79/x
  3. Step 3: Cross multiply
    58,869.71x = 81,237.72 × 33,377.79
  4. Step 4: Simplify right side
    58,869.71x = 2,711,535,235.49
  5. Step 5: Solve for x
    x = 2,711,535,235.49/58,869.71
  6. Step 6: Final answer
    x = 46,059.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.