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Finding the Fourth Proportional to 6,681.56, 9,221.28 and 4,294.10

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Solution

The fourth proportional to 6,681.56, 9,221.28 and 4,294.10 is: 5,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.56 : 9,221.28 = 4,294.10 : x
  2. Step 2: Convert to fraction form
    6,681.56/9,221.28 = 4,294.10/x
  3. Step 3: Cross multiply
    6,681.56x = 9,221.28 × 4,294.10
  4. Step 4: Simplify right side
    6,681.56x = 39,597,098.45
  5. Step 5: Solve for x
    x = 39,597,098.45/6,681.56
  6. Step 6: Final answer
    x = 5,926.33

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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.