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Finding the Fourth Proportional to 22,376.08, 30,883.08 and 12,945.52

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Solution

The fourth proportional to 22,376.08, 30,883.08 and 12,945.52 is: 17,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.08 : 30,883.08 = 12,945.52 : x
  2. Step 2: Convert to fraction form
    22,376.08/30,883.08 = 12,945.52/x
  3. Step 3: Cross multiply
    22,376.08x = 30,883.08 × 12,945.52
  4. Step 4: Simplify right side
    22,376.08x = 399,797,529.80
  5. Step 5: Solve for x
    x = 399,797,529.80/22,376.08
  6. Step 6: Final answer
    x = 17,867.18

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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.