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Finding the Fourth Proportional to 60,822.87, 91,248.53 and 20,842.29

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Solution

The fourth proportional to 60,822.87, 91,248.53 and 20,842.29 is: 31,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,822.87 : 91,248.53 = 20,842.29 : x
  2. Step 2: Convert to fraction form
    60,822.87/91,248.53 = 20,842.29/x
  3. Step 3: Cross multiply
    60,822.87x = 91,248.53 × 20,842.29
  4. Step 4: Simplify right side
    60,822.87x = 1,901,828,324.33
  5. Step 5: Solve for x
    x = 1,901,828,324.33/60,822.87
  6. Step 6: Final answer
    x = 31,268.31

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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.