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Finding the Fourth Proportional to 8,596.80, 12,914.40 and 8,366.40

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Solution

The fourth proportional to 8,596.80, 12,914.40 and 8,366.40 is: 12,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,596.80 : 12,914.40 = 8,366.40 : x
  2. Step 2: Convert to fraction form
    8,596.80/12,914.40 = 8,366.40/x
  3. Step 3: Cross multiply
    8,596.80x = 12,914.40 × 8,366.40
  4. Step 4: Simplify right side
    8,596.80x = 108,047,036.16
  5. Step 5: Solve for x
    x = 108,047,036.16/8,596.80
  6. Step 6: Final answer
    x = 12,568.29

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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.