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Finding the Fourth Proportional to 68,717.97, 94,829.59 and 38,503.20

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Solution

The fourth proportional to 68,717.97, 94,829.59 and 38,503.20 is: 53,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.97 : 94,829.59 = 38,503.20 : x
  2. Step 2: Convert to fraction form
    68,717.97/94,829.59 = 38,503.20/x
  3. Step 3: Cross multiply
    68,717.97x = 94,829.59 × 38,503.20
  4. Step 4: Simplify right side
    68,717.97x = 3,651,242,323.43
  5. Step 5: Solve for x
    x = 3,651,242,323.43/68,717.97
  6. Step 6: Final answer
    x = 53,133.73

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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.