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Finding the Fourth Proportional to 71,853.60, 107,743.35 and 38,601.60

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Solution

The fourth proportional to 71,853.60, 107,743.35 and 38,601.60 is: 57,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,853.60 : 107,743.35 = 38,601.60 : x
  2. Step 2: Convert to fraction form
    71,853.60/107,743.35 = 38,601.60/x
  3. Step 3: Cross multiply
    71,853.60x = 107,743.35 × 38,601.60
  4. Step 4: Simplify right side
    71,853.60x = 4,159,065,699.36
  5. Step 5: Solve for x
    x = 4,159,065,699.36/71,853.60
  6. Step 6: Final answer
    x = 57,882.50

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1.5x scale

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.