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Finding the Fourth Proportional to 58,642.60, 87,963.14 and 14,269.38

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Solution

The fourth proportional to 58,642.60, 87,963.14 and 14,269.38 is: 21,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,642.60 : 87,963.14 = 14,269.38 : x
  2. Step 2: Convert to fraction form
    58,642.60/87,963.14 = 14,269.38/x
  3. Step 3: Cross multiply
    58,642.60x = 87,963.14 × 14,269.38
  4. Step 4: Simplify right side
    58,642.60x = 1,255,179,470.65
  5. Step 5: Solve for x
    x = 1,255,179,470.65/58,642.60
  6. Step 6: Final answer
    x = 21,403.89

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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.