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Finding the Fourth Proportional to 68,777.97, 94,917.51 and 38,572.98

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Solution

The fourth proportional to 68,777.97, 94,917.51 and 38,572.98 is: 53,232.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,777.97 : 94,917.51 = 38,572.98 : x
  2. Step 2: Convert to fraction form
    68,777.97/94,917.51 = 38,572.98/x
  3. Step 3: Cross multiply
    68,777.97x = 94,917.51 × 38,572.98
  4. Step 4: Simplify right side
    68,777.97x = 3,661,251,214.88
  5. Step 5: Solve for x
    x = 3,661,251,214.88/68,777.97
  6. Step 6: Final answer
    x = 53,232.91

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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.