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Finding the Fourth Proportional to 18,557.76, 27,837.90 and 7,464.45

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Solution

The fourth proportional to 18,557.76, 27,837.90 and 7,464.45 is: 11,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.76 : 27,837.90 = 7,464.45 : x
  2. Step 2: Convert to fraction form
    18,557.76/27,837.90 = 7,464.45/x
  3. Step 3: Cross multiply
    18,557.76x = 27,837.90 × 7,464.45
  4. Step 4: Simplify right side
    18,557.76x = 207,794,612.66
  5. Step 5: Solve for x
    x = 207,794,612.66/18,557.76
  6. Step 6: Final answer
    x = 11,197.18

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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.