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Finding the Fourth Proportional to 55,265.80, 82,915.08 and 25,701.20

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Solution

The fourth proportional to 55,265.80, 82,915.08 and 25,701.20 is: 38,559.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,265.80 : 82,915.08 = 25,701.20 : x
  2. Step 2: Convert to fraction form
    55,265.80/82,915.08 = 25,701.20/x
  3. Step 3: Cross multiply
    55,265.80x = 82,915.08 × 25,701.20
  4. Step 4: Simplify right side
    55,265.80x = 2,131,017,054.10
  5. Step 5: Solve for x
    x = 2,131,017,054.10/55,265.80
  6. Step 6: Final answer
    x = 38,559.42

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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.