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Finding the Fourth Proportional to 60,915.78, 84,065.67 and 34,059.42

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Solution

The fourth proportional to 60,915.78, 84,065.67 and 34,059.42 is: 47,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,915.78 : 84,065.67 = 34,059.42 : x
  2. Step 2: Convert to fraction form
    60,915.78/84,065.67 = 34,059.42/x
  3. Step 3: Cross multiply
    60,915.78x = 84,065.67 × 34,059.42
  4. Step 4: Simplify right side
    60,915.78x = 2,863,227,962.11
  5. Step 5: Solve for x
    x = 2,863,227,962.11/60,915.78
  6. Step 6: Final answer
    x = 47,003.06

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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.