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Finding the Fourth Proportional to 48,398, 66,800.76 and 29,551.04

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Solution

The fourth proportional to 48,398, 66,800.76 and 29,551.04 is: 40,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,398 : 66,800.76 = 29,551.04 : x
  2. Step 2: Convert to fraction form
    48,398/66,800.76 = 29,551.04/x
  3. Step 3: Cross multiply
    48,398x = 66,800.76 × 29,551.04
  4. Step 4: Simplify right side
    48,398x = 1,974,031,930.79
  5. Step 5: Solve for x
    x = 1,974,031,930.79/48,398
  6. Step 6: Final answer
    x = 40,787.47

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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.