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Finding the Fourth Proportional to 8,193.90, 12,291.21 and 2,351.10

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Solution

The fourth proportional to 8,193.90, 12,291.21 and 2,351.10 is: 3,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,193.90 : 12,291.21 = 2,351.10 : x
  2. Step 2: Convert to fraction form
    8,193.90/12,291.21 = 2,351.10/x
  3. Step 3: Cross multiply
    8,193.90x = 12,291.21 × 2,351.10
  4. Step 4: Simplify right side
    8,193.90x = 28,897,863.83
  5. Step 5: Solve for x
    x = 28,897,863.83/8,193.90
  6. Step 6: Final answer
    x = 3,526.75

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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.