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Finding the Fourth Proportional to 9,371.92, 12,928.14 and 6,011

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Solution

The fourth proportional to 9,371.92, 12,928.14 and 6,011 is: 8,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.92 : 12,928.14 = 6,011 : x
  2. Step 2: Convert to fraction form
    9,371.92/12,928.14 = 6,011/x
  3. Step 3: Cross multiply
    9,371.92x = 12,928.14 × 6,011
  4. Step 4: Simplify right side
    9,371.92x = 77,711,049.54
  5. Step 5: Solve for x
    x = 77,711,049.54/9,371.92
  6. Step 6: Final answer
    x = 8,291.90

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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.