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Finding the Fourth Proportional to 45,634.70, 62,971.77 and 25,488.78

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Solution

The fourth proportional to 45,634.70, 62,971.77 and 25,488.78 is: 35,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,634.70 : 62,971.77 = 25,488.78 : x
  2. Step 2: Convert to fraction form
    45,634.70/62,971.77 = 25,488.78/x
  3. Step 3: Cross multiply
    45,634.70x = 62,971.77 × 25,488.78
  4. Step 4: Simplify right side
    45,634.70x = 1,605,073,591.74
  5. Step 5: Solve for x
    x = 1,605,073,591.74/45,634.70
  6. Step 6: Final answer
    x = 35,172.22

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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.