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Finding the Fourth Proportional to 8,566.28, 12,856.28 and 8,292.91

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Solution

The fourth proportional to 8,566.28, 12,856.28 and 8,292.91 is: 12,446.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.28 : 12,856.28 = 8,292.91 : x
  2. Step 2: Convert to fraction form
    8,566.28/12,856.28 = 8,292.91/x
  3. Step 3: Cross multiply
    8,566.28x = 12,856.28 × 8,292.91
  4. Step 4: Simplify right side
    8,566.28x = 106,615,946.80
  5. Step 5: Solve for x
    x = 106,615,946.80/8,566.28
  6. Step 6: Final answer
    x = 12,446.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.