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Finding the Fourth Proportional to 68,854.02, 94,996.89 and 38,634.90

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Solution

The fourth proportional to 68,854.02, 94,996.89 and 38,634.90 is: 53,304.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854.02 : 94,996.89 = 38,634.90 : x
  2. Step 2: Convert to fraction form
    68,854.02/94,996.89 = 38,634.90/x
  3. Step 3: Cross multiply
    68,854.02x = 94,996.89 × 38,634.90
  4. Step 4: Simplify right side
    68,854.02x = 3,670,195,345.46
  5. Step 5: Solve for x
    x = 3,670,195,345.46/68,854.02
  6. Step 6: Final answer
    x = 53,304.01

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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.