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Finding the Fourth Proportional to 68,141.52, 94,049.28 and 39,854.16

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Solution

The fourth proportional to 68,141.52, 94,049.28 and 39,854.16 is: 55,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,141.52 : 94,049.28 = 39,854.16 : x
  2. Step 2: Convert to fraction form
    68,141.52/94,049.28 = 39,854.16/x
  3. Step 3: Cross multiply
    68,141.52x = 94,049.28 × 39,854.16
  4. Step 4: Simplify right side
    68,141.52x = 3,748,255,053.00
  5. Step 5: Solve for x
    x = 3,748,255,053.00/68,141.52
  6. Step 6: Final answer
    x = 55,006.92

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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.