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Finding the Fourth Proportional to 22,376.64, 30,864.15 and 18,996.15

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Solution

The fourth proportional to 22,376.64, 30,864.15 and 18,996.15 is: 26,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.64 : 30,864.15 = 18,996.15 : x
  2. Step 2: Convert to fraction form
    22,376.64/30,864.15 = 18,996.15/x
  3. Step 3: Cross multiply
    22,376.64x = 30,864.15 × 18,996.15
  4. Step 4: Simplify right side
    22,376.64x = 586,300,023.02
  5. Step 5: Solve for x
    x = 586,300,023.02/22,376.64
  6. Step 6: Final answer
    x = 26,201.43

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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.