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Finding the Fourth Proportional to 22,952.80, 31,672.26 and 12,879.14

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Solution

The fourth proportional to 22,952.80, 31,672.26 and 12,879.14 is: 17,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,952.80 : 31,672.26 = 12,879.14 : x
  2. Step 2: Convert to fraction form
    22,952.80/31,672.26 = 12,879.14/x
  3. Step 3: Cross multiply
    22,952.80x = 31,672.26 × 12,879.14
  4. Step 4: Simplify right side
    22,952.80x = 407,911,470.66
  5. Step 5: Solve for x
    x = 407,911,470.66/22,952.80
  6. Step 6: Final answer
    x = 17,771.75

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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.