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Finding the Fourth Proportional to 17,149.70, 25,724.55 and 4,837.70

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Solution

The fourth proportional to 17,149.70, 25,724.55 and 4,837.70 is: 7,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,149.70 : 25,724.55 = 4,837.70 : x
  2. Step 2: Convert to fraction form
    17,149.70/25,724.55 = 4,837.70/x
  3. Step 3: Cross multiply
    17,149.70x = 25,724.55 × 4,837.70
  4. Step 4: Simplify right side
    17,149.70x = 124,447,655.54
  5. Step 5: Solve for x
    x = 124,447,655.54/17,149.70
  6. Step 6: Final answer
    x = 7,256.55

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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.