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Finding the Fourth Proportional to 9,266.36, 12,701.78 and 9,141.75

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Solution

The fourth proportional to 9,266.36, 12,701.78 and 9,141.75 is: 12,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266.36 : 12,701.78 = 9,141.75 : x
  2. Step 2: Convert to fraction form
    9,266.36/12,701.78 = 9,141.75/x
  3. Step 3: Cross multiply
    9,266.36x = 12,701.78 × 9,141.75
  4. Step 4: Simplify right side
    9,266.36x = 116,116,451.61
  5. Step 5: Solve for x
    x = 116,116,451.61/9,266.36
  6. Step 6: Final answer
    x = 12,530.97

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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 (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.