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Finding the Fourth Proportional to 8,675.52, 11,969.12 and 5,317.12

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Solution

The fourth proportional to 8,675.52, 11,969.12 and 5,317.12 is: 7,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.52 : 11,969.12 = 5,317.12 : x
  2. Step 2: Convert to fraction form
    8,675.52/11,969.12 = 5,317.12/x
  3. Step 3: Cross multiply
    8,675.52x = 11,969.12 × 5,317.12
  4. Step 4: Simplify right side
    8,675.52x = 63,641,247.33
  5. Step 5: Solve for x
    x = 63,641,247.33/8,675.52
  6. Step 6: Final answer
    x = 7,335.73

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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.