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Finding the Fourth Proportional to 18,266.64, 27,402.12 and 5,787.24

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Solution

The fourth proportional to 18,266.64, 27,402.12 and 5,787.24 is: 8,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.64 : 27,402.12 = 5,787.24 : x
  2. Step 2: Convert to fraction form
    18,266.64/27,402.12 = 5,787.24/x
  3. Step 3: Cross multiply
    18,266.64x = 27,402.12 × 5,787.24
  4. Step 4: Simplify right side
    18,266.64x = 158,582,644.95
  5. Step 5: Solve for x
    x = 158,582,644.95/18,266.64
  6. Step 6: Final answer
    x = 8,681.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.