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Finding the Fourth Proportional to 8,707.11, 12,006.99 and 7,452.33

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Solution

The fourth proportional to 8,707.11, 12,006.99 and 7,452.33 is: 10,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.11 : 12,006.99 = 7,452.33 : x
  2. Step 2: Convert to fraction form
    8,707.11/12,006.99 = 7,452.33/x
  3. Step 3: Cross multiply
    8,707.11x = 12,006.99 × 7,452.33
  4. Step 4: Simplify right side
    8,707.11x = 89,480,051.79
  5. Step 5: Solve for x
    x = 89,480,051.79/8,707.11
  6. Step 6: Final answer
    x = 10,276.66

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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.