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Finding the Fourth Proportional to 18,002.64, 26,873.70 and 15,553.20

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Solution

The fourth proportional to 18,002.64, 26,873.70 and 15,553.20 is: 23,217.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,002.64 : 26,873.70 = 15,553.20 : x
  2. Step 2: Convert to fraction form
    18,002.64/26,873.70 = 15,553.20/x
  3. Step 3: Cross multiply
    18,002.64x = 26,873.70 × 15,553.20
  4. Step 4: Simplify right side
    18,002.64x = 417,972,030.84
  5. Step 5: Solve for x
    x = 417,972,030.84/18,002.64
  6. Step 6: Final answer
    x = 23,217.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.