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Finding the Fourth Proportional to 6,902.71, 10,354.65 and 2,158.54

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Solution

The fourth proportional to 6,902.71, 10,354.65 and 2,158.54 is: 3,237.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.71 : 10,354.65 = 2,158.54 : x
  2. Step 2: Convert to fraction form
    6,902.71/10,354.65 = 2,158.54/x
  3. Step 3: Cross multiply
    6,902.71x = 10,354.65 × 2,158.54
  4. Step 4: Simplify right side
    6,902.71x = 22,350,926.21
  5. Step 5: Solve for x
    x = 22,350,926.21/6,902.71
  6. Step 6: Final answer
    x = 3,237.99

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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.