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Finding the Fourth Proportional to 18,335.54, 27,503.42 and 6,648.45

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Solution

The fourth proportional to 18,335.54, 27,503.42 and 6,648.45 is: 9,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.54 : 27,503.42 = 6,648.45 : x
  2. Step 2: Convert to fraction form
    18,335.54/27,503.42 = 6,648.45/x
  3. Step 3: Cross multiply
    18,335.54x = 27,503.42 × 6,648.45
  4. Step 4: Simplify right side
    18,335.54x = 182,855,079.46
  5. Step 5: Solve for x
    x = 182,855,079.46/18,335.54
  6. Step 6: Final answer
    x = 9,972.72

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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.