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Finding the Fourth Proportional to 60,386.80, 90,601.80 and 25,337.20

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Solution

The fourth proportional to 60,386.80, 90,601.80 and 25,337.20 is: 38,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,386.80 : 90,601.80 = 25,337.20 : x
  2. Step 2: Convert to fraction form
    60,386.80/90,601.80 = 25,337.20/x
  3. Step 3: Cross multiply
    60,386.80x = 90,601.80 × 25,337.20
  4. Step 4: Simplify right side
    60,386.80x = 2,295,595,926.96
  5. Step 5: Solve for x
    x = 2,295,595,926.96/60,386.80
  6. Step 6: Final answer
    x = 38,014.86

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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.