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Finding the Fourth Proportional to 45,390.71, 62,642.97 and 25,251.39

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Solution

The fourth proportional to 45,390.71, 62,642.97 and 25,251.39 is: 34,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,390.71 : 62,642.97 = 25,251.39 : x
  2. Step 2: Convert to fraction form
    45,390.71/62,642.97 = 25,251.39/x
  3. Step 3: Cross multiply
    45,390.71x = 62,642.97 × 25,251.39
  4. Step 4: Simplify right side
    45,390.71x = 1,581,822,066.23
  5. Step 5: Solve for x
    x = 1,581,822,066.23/45,390.71
  6. Step 6: Final answer
    x = 34,849.02

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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.