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Finding the Fourth Proportional to 60,545.75, 90,807.89 and 18,415.62

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Solution

The fourth proportional to 60,545.75, 90,807.89 and 18,415.62 is: 27,620.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,545.75 : 90,807.89 = 18,415.62 : x
  2. Step 2: Convert to fraction form
    60,545.75/90,807.89 = 18,415.62/x
  3. Step 3: Cross multiply
    60,545.75x = 90,807.89 × 18,415.62
  4. Step 4: Simplify right side
    60,545.75x = 1,672,283,503.16
  5. Step 5: Solve for x
    x = 1,672,283,503.16/60,545.75
  6. Step 6: Final answer
    x = 27,620.17

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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.