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Finding the Fourth Proportional to 25,960.78, 38,955.96 and 10,167.10

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Solution

The fourth proportional to 25,960.78, 38,955.96 and 10,167.10 is: 15,256.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,960.78 : 38,955.96 = 10,167.10 : x
  2. Step 2: Convert to fraction form
    25,960.78/38,955.96 = 10,167.10/x
  3. Step 3: Cross multiply
    25,960.78x = 38,955.96 × 10,167.10
  4. Step 4: Simplify right side
    25,960.78x = 396,069,140.92
  5. Step 5: Solve for x
    x = 396,069,140.92/25,960.78
  6. Step 6: Final answer
    x = 15,256.44

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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.