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Finding the Fourth Proportional to 6,902.67, 9,528.89 and 4,069.08

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Solution

The fourth proportional to 6,902.67, 9,528.89 and 4,069.08 is: 5,617.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.67 : 9,528.89 = 4,069.08 : x
  2. Step 2: Convert to fraction form
    6,902.67/9,528.89 = 4,069.08/x
  3. Step 3: Cross multiply
    6,902.67x = 9,528.89 × 4,069.08
  4. Step 4: Simplify right side
    6,902.67x = 38,773,795.38
  5. Step 5: Solve for x
    x = 38,773,795.38/6,902.67
  6. Step 6: Final answer
    x = 5,617.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.