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Finding the Fourth Proportional to 25,139.97, 34,692.04 and 15,073.97

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Solution

The fourth proportional to 25,139.97, 34,692.04 and 15,073.97 is: 20,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,139.97 : 34,692.04 = 15,073.97 : x
  2. Step 2: Convert to fraction form
    25,139.97/34,692.04 = 15,073.97/x
  3. Step 3: Cross multiply
    25,139.97x = 34,692.04 × 15,073.97
  4. Step 4: Simplify right side
    25,139.97x = 522,946,559.05
  5. Step 5: Solve for x
    x = 522,946,559.05/25,139.97
  6. Step 6: Final answer
    x = 20,801.40

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1.5x scale

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.