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Finding the Fourth Proportional to 60,131.60, 90,196.76 and 18,578.96

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Solution

The fourth proportional to 60,131.60, 90,196.76 and 18,578.96 is: 27,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,131.60 : 90,196.76 = 18,578.96 : x
  2. Step 2: Convert to fraction form
    60,131.60/90,196.76 = 18,578.96/x
  3. Step 3: Cross multiply
    60,131.60x = 90,196.76 × 18,578.96
  4. Step 4: Simplify right side
    60,131.60x = 1,675,761,996.17
  5. Step 5: Solve for x
    x = 1,675,761,996.17/60,131.60
  6. Step 6: Final answer
    x = 27,868.24

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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.