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Finding the Fourth Proportional to 55,304.28, 82,957.20 and 13,751.28

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Solution

The fourth proportional to 55,304.28, 82,957.20 and 13,751.28 is: 20,627.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,304.28 : 82,957.20 = 13,751.28 : x
  2. Step 2: Convert to fraction form
    55,304.28/82,957.20 = 13,751.28/x
  3. Step 3: Cross multiply
    55,304.28x = 82,957.20 × 13,751.28
  4. Step 4: Simplify right side
    55,304.28x = 1,140,767,685.22
  5. Step 5: Solve for x
    x = 1,140,767,685.22/55,304.28
  6. Step 6: Final answer
    x = 20,627.11

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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.