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Finding the Fourth Proportional to 12,565.44, 17,340.30 and 6,976.44

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Solution

The fourth proportional to 12,565.44, 17,340.30 and 6,976.44 is: 9,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.44 : 17,340.30 = 6,976.44 : x
  2. Step 2: Convert to fraction form
    12,565.44/17,340.30 = 6,976.44/x
  3. Step 3: Cross multiply
    12,565.44x = 17,340.30 × 6,976.44
  4. Step 4: Simplify right side
    12,565.44x = 120,973,562.53
  5. Step 5: Solve for x
    x = 120,973,562.53/12,565.44
  6. Step 6: Final answer
    x = 9,627.48

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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.