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Finding the Fourth Proportional to 36,558.97, 54,858.95 and 19,920.16

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Solution

The fourth proportional to 36,558.97, 54,858.95 and 19,920.16 is: 29,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,558.97 : 54,858.95 = 19,920.16 : x
  2. Step 2: Convert to fraction form
    36,558.97/54,858.95 = 19,920.16/x
  3. Step 3: Cross multiply
    36,558.97x = 54,858.95 × 19,920.16
  4. Step 4: Simplify right side
    36,558.97x = 1,092,799,061.43
  5. Step 5: Solve for x
    x = 1,092,799,061.43/36,558.97
  6. Step 6: Final answer
    x = 29,891.41

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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.