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Finding the Fourth Proportional to 8,363.16, 12,547.04 and 6,799.28

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Solution

The fourth proportional to 8,363.16, 12,547.04 and 6,799.28 is: 10,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.16 : 12,547.04 = 6,799.28 : x
  2. Step 2: Convert to fraction form
    8,363.16/12,547.04 = 6,799.28/x
  3. Step 3: Cross multiply
    8,363.16x = 12,547.04 × 6,799.28
  4. Step 4: Simplify right side
    8,363.16x = 85,310,741.40
  5. Step 5: Solve for x
    x = 85,310,741.40/8,363.16
  6. Step 6: Final answer
    x = 10,200.78

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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.