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Finding the Fourth Proportional to 7,235.73, 9,979.34 and 6,081.57

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Solution

The fourth proportional to 7,235.73, 9,979.34 and 6,081.57 is: 8,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.73 : 9,979.34 = 6,081.57 : x
  2. Step 2: Convert to fraction form
    7,235.73/9,979.34 = 6,081.57/x
  3. Step 3: Cross multiply
    7,235.73x = 9,979.34 × 6,081.57
  4. Step 4: Simplify right side
    7,235.73x = 60,690,024.36
  5. Step 5: Solve for x
    x = 60,690,024.36/7,235.73
  6. Step 6: Final answer
    x = 8,387.55

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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.