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Finding the Fourth Proportional to 58,869.65, 81,237.64 and 33,377.72

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Solution

The fourth proportional to 58,869.65, 81,237.64 and 33,377.72 is: 46,059.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,869.65 : 81,237.64 = 33,377.72 : x
  2. Step 2: Convert to fraction form
    58,869.65/81,237.64 = 33,377.72/x
  3. Step 3: Cross multiply
    58,869.65x = 81,237.64 × 33,377.72
  4. Step 4: Simplify right side
    58,869.65x = 2,711,527,321.03
  5. Step 5: Solve for x
    x = 2,711,527,321.03/58,869.65
  6. Step 6: Final answer
    x = 46,059.86

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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.