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Finding the Fourth Proportional to 12,932.22, 17,853.22 and 8,705.48

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Solution

The fourth proportional to 12,932.22, 17,853.22 and 8,705.48 is: 12,018.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.22 : 17,853.22 = 8,705.48 : x
  2. Step 2: Convert to fraction form
    12,932.22/17,853.22 = 8,705.48/x
  3. Step 3: Cross multiply
    12,932.22x = 17,853.22 × 8,705.48
  4. Step 4: Simplify right side
    12,932.22x = 155,420,849.65
  5. Step 5: Solve for x
    x = 155,420,849.65/12,932.22
  6. Step 6: Final answer
    x = 12,018.11

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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.