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Finding the Fourth Proportional to 58,987.20, 88,480.80 and 19,545.60

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Solution

The fourth proportional to 58,987.20, 88,480.80 and 19,545.60 is: 29,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,987.20 : 88,480.80 = 19,545.60 : x
  2. Step 2: Convert to fraction form
    58,987.20/88,480.80 = 19,545.60/x
  3. Step 3: Cross multiply
    58,987.20x = 88,480.80 × 19,545.60
  4. Step 4: Simplify right side
    58,987.20x = 1,729,410,324.48
  5. Step 5: Solve for x
    x = 1,729,410,324.48/58,987.20
  6. Step 6: Final answer
    x = 29,318.40

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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.