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Finding the Fourth Proportional to 73,425.60, 101,326.08 and 39,891.36

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Solution

The fourth proportional to 73,425.60, 101,326.08 and 39,891.36 is: 55,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,425.60 : 101,326.08 = 39,891.36 : x
  2. Step 2: Convert to fraction form
    73,425.60/101,326.08 = 39,891.36/x
  3. Step 3: Cross multiply
    73,425.60x = 101,326.08 × 39,891.36
  4. Step 4: Simplify right side
    73,425.60x = 4,042,035,134.67
  5. Step 5: Solve for x
    x = 4,042,035,134.67/73,425.60
  6. Step 6: Final answer
    x = 55,049.40

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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.