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Finding the Fourth Proportional to 67,902.88, 93,717.24 and 39,608.60

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Solution

The fourth proportional to 67,902.88, 93,717.24 and 39,608.60 is: 54,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,902.88 : 93,717.24 = 39,608.60 : x
  2. Step 2: Convert to fraction form
    67,902.88/93,717.24 = 39,608.60/x
  3. Step 3: Cross multiply
    67,902.88x = 93,717.24 × 39,608.60
  4. Step 4: Simplify right side
    67,902.88x = 3,712,008,672.26
  5. Step 5: Solve for x
    x = 3,712,008,672.26/67,902.88
  6. Step 6: Final answer
    x = 54,666.44

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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.