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Finding the Fourth Proportional to 5,510.70, 8,266.05 and 5,255.55

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Solution

The fourth proportional to 5,510.70, 8,266.05 and 5,255.55 is: 7,883.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.70 : 8,266.05 = 5,255.55 : x
  2. Step 2: Convert to fraction form
    5,510.70/8,266.05 = 5,255.55/x
  3. Step 3: Cross multiply
    5,510.70x = 8,266.05 × 5,255.55
  4. Step 4: Simplify right side
    5,510.70x = 43,442,639.08
  5. Step 5: Solve for x
    x = 43,442,639.08/5,510.70
  6. Step 6: Final answer
    x = 7,883.33

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Half scale
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Double scale
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Similar ratio
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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.