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Finding the Fourth Proportional to 22,543.60, 33,815.40 and 15,545.20

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Solution

The fourth proportional to 22,543.60, 33,815.40 and 15,545.20 is: 23,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,543.60 : 33,815.40 = 15,545.20 : x
  2. Step 2: Convert to fraction form
    22,543.60/33,815.40 = 15,545.20/x
  3. Step 3: Cross multiply
    22,543.60x = 33,815.40 × 15,545.20
  4. Step 4: Simplify right side
    22,543.60x = 525,667,156.08
  5. Step 5: Solve for x
    x = 525,667,156.08/22,543.60
  6. Step 6: Final answer
    x = 23,317.80

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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.