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Finding the Fourth Proportional to 8,355.62, 12,549.48 and 8,019.02

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Solution

The fourth proportional to 8,355.62, 12,549.48 and 8,019.02 is: 12,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.62 : 12,549.48 = 8,019.02 : x
  2. Step 2: Convert to fraction form
    8,355.62/12,549.48 = 8,019.02/x
  3. Step 3: Cross multiply
    8,355.62x = 12,549.48 × 8,019.02
  4. Step 4: Simplify right side
    8,355.62x = 100,634,531.11
  5. Step 5: Solve for x
    x = 100,634,531.11/8,355.62
  6. Step 6: Final answer
    x = 12,043.93

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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.