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Finding the Fourth Proportional to 8,662.51, 11,948.12 and 8,532.91

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Solution

The fourth proportional to 8,662.51, 11,948.12 and 8,532.91 is: 11,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.51 : 11,948.12 = 8,532.91 : x
  2. Step 2: Convert to fraction form
    8,662.51/11,948.12 = 8,532.91/x
  3. Step 3: Cross multiply
    8,662.51x = 11,948.12 × 8,532.91
  4. Step 4: Simplify right side
    8,662.51x = 101,952,172.89
  5. Step 5: Solve for x
    x = 101,952,172.89/8,662.51
  6. Step 6: Final answer
    x = 11,769.36

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