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Finding the Fourth Proportional to 25,642.92, 35,377.76 and 15,028.68

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Solution

The fourth proportional to 25,642.92, 35,377.76 and 15,028.68 is: 20,734.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,642.92 : 35,377.76 = 15,028.68 : x
  2. Step 2: Convert to fraction form
    25,642.92/35,377.76 = 15,028.68/x
  3. Step 3: Cross multiply
    25,642.92x = 35,377.76 × 15,028.68
  4. Step 4: Simplify right side
    25,642.92x = 531,681,034.16
  5. Step 5: Solve for x
    x = 531,681,034.16/25,642.92
  6. Step 6: Final answer
    x = 20,734.03

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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.