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Finding the Fourth Proportional to 8,624.56, 11,889.84 and 7,292.92

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Solution

The fourth proportional to 8,624.56, 11,889.84 and 7,292.92 is: 10,054.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.56 : 11,889.84 = 7,292.92 : x
  2. Step 2: Convert to fraction form
    8,624.56/11,889.84 = 7,292.92/x
  3. Step 3: Cross multiply
    8,624.56x = 11,889.84 × 7,292.92
  4. Step 4: Simplify right side
    8,624.56x = 86,711,651.93
  5. Step 5: Solve for x
    x = 86,711,651.93/8,624.56
  6. Step 6: Final answer
    x = 10,054.04

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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.