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Finding the Fourth Proportional to 6,622.61, 9,136.59 and 4,266.12

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Solution

The fourth proportional to 6,622.61, 9,136.59 and 4,266.12 is: 5,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.61 : 9,136.59 = 4,266.12 : x
  2. Step 2: Convert to fraction form
    6,622.61/9,136.59 = 4,266.12/x
  3. Step 3: Cross multiply
    6,622.61x = 9,136.59 × 4,266.12
  4. Step 4: Simplify right side
    6,622.61x = 38,977,789.33
  5. Step 5: Solve for x
    x = 38,977,789.33/6,622.61
  6. Step 6: Final answer
    x = 5,885.56

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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.