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Finding the Fourth Proportional to 8,674.86, 13,012.29 and 7,132.62

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Solution

The fourth proportional to 8,674.86, 13,012.29 and 7,132.62 is: 10,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.86 : 13,012.29 = 7,132.62 : x
  2. Step 2: Convert to fraction form
    8,674.86/13,012.29 = 7,132.62/x
  3. Step 3: Cross multiply
    8,674.86x = 13,012.29 × 7,132.62
  4. Step 4: Simplify right side
    8,674.86x = 92,811,719.90
  5. Step 5: Solve for x
    x = 92,811,719.90/8,674.86
  6. Step 6: Final answer
    x = 10,698.93

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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.