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Finding the Fourth Proportional to 25,144.61, 37,721.52 and 8,278.58

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Solution

The fourth proportional to 25,144.61, 37,721.52 and 8,278.58 is: 12,419.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,144.61 : 37,721.52 = 8,278.58 : x
  2. Step 2: Convert to fraction form
    25,144.61/37,721.52 = 8,278.58/x
  3. Step 3: Cross multiply
    25,144.61x = 37,721.52 × 8,278.58
  4. Step 4: Simplify right side
    25,144.61x = 312,280,432.43
  5. Step 5: Solve for x
    x = 312,280,432.43/25,144.61
  6. Step 6: Final answer
    x = 12,419.38

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1.5x scale

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.