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Finding the Fourth Proportional to 59,291.76, 81,869.76 and 36,663.60

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Solution

The fourth proportional to 59,291.76, 81,869.76 and 36,663.60 is: 50,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,291.76 : 81,869.76 = 36,663.60 : x
  2. Step 2: Convert to fraction form
    59,291.76/81,869.76 = 36,663.60/x
  3. Step 3: Cross multiply
    59,291.76x = 81,869.76 × 36,663.60
  4. Step 4: Simplify right side
    59,291.76x = 3,001,640,132.74
  5. Step 5: Solve for x
    x = 3,001,640,132.74/59,291.76
  6. Step 6: Final answer
    x = 50,624.91

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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.