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Finding the Fourth Proportional to 55,842.48, 77,075.88 and 31,982.88

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Solution

The fourth proportional to 55,842.48, 77,075.88 and 31,982.88 is: 44,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,842.48 : 77,075.88 = 31,982.88 : x
  2. Step 2: Convert to fraction form
    55,842.48/77,075.88 = 31,982.88/x
  3. Step 3: Cross multiply
    55,842.48x = 77,075.88 × 31,982.88
  4. Step 4: Simplify right side
    55,842.48x = 2,465,108,620.93
  5. Step 5: Solve for x
    x = 2,465,108,620.93/55,842.48
  6. Step 6: Final answer
    x = 44,143.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.