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Finding the Fourth Proportional to 8,566.12, 12,806.99 and 7,264.40

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Solution

The fourth proportional to 8,566.12, 12,806.99 and 7,264.40 is: 10,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.12 : 12,806.99 = 7,264.40 : x
  2. Step 2: Convert to fraction form
    8,566.12/12,806.99 = 7,264.40/x
  3. Step 3: Cross multiply
    8,566.12x = 12,806.99 × 7,264.40
  4. Step 4: Simplify right side
    8,566.12x = 93,035,098.16
  5. Step 5: Solve for x
    x = 93,035,098.16/8,566.12
  6. Step 6: Final answer
    x = 10,860.82

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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.