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Finding the Fourth Proportional to 56,010.53, 84,030.12 and 18,581.04

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Solution

The fourth proportional to 56,010.53, 84,030.12 and 18,581.04 is: 27,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,010.53 : 84,030.12 = 18,581.04 : x
  2. Step 2: Convert to fraction form
    56,010.53/84,030.12 = 18,581.04/x
  3. Step 3: Cross multiply
    56,010.53x = 84,030.12 × 18,581.04
  4. Step 4: Simplify right side
    56,010.53x = 1,561,367,020.92
  5. Step 5: Solve for x
    x = 1,561,367,020.92/56,010.53
  6. Step 6: Final answer
    x = 27,876.31

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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.