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Finding the Fourth Proportional to 18,398.88, 27,598.56 and 8,010.24

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Solution

The fourth proportional to 18,398.88, 27,598.56 and 8,010.24 is: 12,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.88 : 27,598.56 = 8,010.24 : x
  2. Step 2: Convert to fraction form
    18,398.88/27,598.56 = 8,010.24/x
  3. Step 3: Cross multiply
    18,398.88x = 27,598.56 × 8,010.24
  4. Step 4: Simplify right side
    18,398.88x = 221,071,089.25
  5. Step 5: Solve for x
    x = 221,071,089.25/18,398.88
  6. Step 6: Final answer
    x = 12,015.46

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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.