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Finding the Fourth Proportional to 25,169.96, 34,734.95 and 13,839.95

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Solution

The fourth proportional to 25,169.96, 34,734.95 and 13,839.95 is: 19,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,169.96 : 34,734.95 = 13,839.95 : x
  2. Step 2: Convert to fraction form
    25,169.96/34,734.95 = 13,839.95/x
  3. Step 3: Cross multiply
    25,169.96x = 34,734.95 × 13,839.95
  4. Step 4: Simplify right side
    25,169.96x = 480,729,728.38
  5. Step 5: Solve for x
    x = 480,729,728.38/25,169.96
  6. Step 6: Final answer
    x = 19,099.35

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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.