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Finding the Fourth Proportional to 38,957.59, 58,390.23 and 17,879.87

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Solution

The fourth proportional to 38,957.59, 58,390.23 and 17,879.87 is: 26,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.59 : 58,390.23 = 17,879.87 : x
  2. Step 2: Convert to fraction form
    38,957.59/58,390.23 = 17,879.87/x
  3. Step 3: Cross multiply
    38,957.59x = 58,390.23 × 17,879.87
  4. Step 4: Simplify right side
    38,957.59x = 1,044,009,934.70
  5. Step 5: Solve for x
    x = 1,044,009,934.70/38,957.59
  6. Step 6: Final answer
    x = 26,798.63

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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.