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Finding the Fourth Proportional to 8,318.95, 11,482.05 and 5,176.96

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Solution

The fourth proportional to 8,318.95, 11,482.05 and 5,176.96 is: 7,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.95 : 11,482.05 = 5,176.96 : x
  2. Step 2: Convert to fraction form
    8,318.95/11,482.05 = 5,176.96/x
  3. Step 3: Cross multiply
    8,318.95x = 11,482.05 × 5,176.96
  4. Step 4: Simplify right side
    8,318.95x = 59,442,168.86
  5. Step 5: Solve for x
    x = 59,442,168.86/8,318.95
  6. Step 6: Final answer
    x = 7,145.39

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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.