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Finding the Fourth Proportional to 12,641.15, 17,444.97 and 6,976.16

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Solution

The fourth proportional to 12,641.15, 17,444.97 and 6,976.16 is: 9,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.15 : 17,444.97 = 6,976.16 : x
  2. Step 2: Convert to fraction form
    12,641.15/17,444.97 = 6,976.16/x
  3. Step 3: Cross multiply
    12,641.15x = 17,444.97 × 6,976.16
  4. Step 4: Simplify right side
    12,641.15x = 121,698,814.69
  5. Step 5: Solve for x
    x = 121,698,814.69/12,641.15
  6. Step 6: Final answer
    x = 9,627.20

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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.