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Finding the Fourth Proportional to 56,062.80, 84,111.66 and 16,620.12

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Solution

The fourth proportional to 56,062.80, 84,111.66 and 16,620.12 is: 24,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,062.80 : 84,111.66 = 16,620.12 : x
  2. Step 2: Convert to fraction form
    56,062.80/84,111.66 = 16,620.12/x
  3. Step 3: Cross multiply
    56,062.80x = 84,111.66 × 16,620.12
  4. Step 4: Simplify right side
    56,062.80x = 1,397,945,882.60
  5. Step 5: Solve for x
    x = 1,397,945,882.60/56,062.80
  6. Step 6: Final answer
    x = 24,935.36

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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.