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Finding the Fourth Proportional to 18,398.93, 27,597.76 and 5,251.30

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Solution

The fourth proportional to 18,398.93, 27,597.76 and 5,251.30 is: 7,876.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.93 : 27,597.76 = 5,251.30 : x
  2. Step 2: Convert to fraction form
    18,398.93/27,597.76 = 5,251.30/x
  3. Step 3: Cross multiply
    18,398.93x = 27,597.76 × 5,251.30
  4. Step 4: Simplify right side
    18,398.93x = 144,924,117.09
  5. Step 5: Solve for x
    x = 144,924,117.09/18,398.93
  6. Step 6: Final answer
    x = 7,876.77

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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.