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Finding the Fourth Proportional to 45,435, 62,700.28 and 25,291.46

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Solution

The fourth proportional to 45,435, 62,700.28 and 25,291.46 is: 34,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,435 : 62,700.28 = 25,291.46 : x
  2. Step 2: Convert to fraction form
    45,435/62,700.28 = 25,291.46/x
  3. Step 3: Cross multiply
    45,435x = 62,700.28 × 25,291.46
  4. Step 4: Simplify right side
    45,435x = 1,585,781,623.61
  5. Step 5: Solve for x
    x = 1,585,781,623.61/45,435
  6. Step 6: Final answer
    x = 34,902.20

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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.