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Finding the Fourth Proportional to 6,626.66, 9,144.34 and 3,642.42

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Solution

The fourth proportional to 6,626.66, 9,144.34 and 3,642.42 is: 5,026.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.66 : 9,144.34 = 3,642.42 : x
  2. Step 2: Convert to fraction form
    6,626.66/9,144.34 = 3,642.42/x
  3. Step 3: Cross multiply
    6,626.66x = 9,144.34 × 3,642.42
  4. Step 4: Simplify right side
    6,626.66x = 33,307,526.90
  5. Step 5: Solve for x
    x = 33,307,526.90/6,626.66
  6. Step 6: Final answer
    x = 5,026.29

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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.