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Finding the Fourth Proportional to 8,793.95, 12,135.65 and 4,815.32

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Solution

The fourth proportional to 8,793.95, 12,135.65 and 4,815.32 is: 6,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.95 : 12,135.65 = 4,815.32 : x
  2. Step 2: Convert to fraction form
    8,793.95/12,135.65 = 4,815.32/x
  3. Step 3: Cross multiply
    8,793.95x = 12,135.65 × 4,815.32
  4. Step 4: Simplify right side
    8,793.95x = 58,436,953.40
  5. Step 5: Solve for x
    x = 58,436,953.40/8,793.95
  6. Step 6: Final answer
    x = 6,645.14

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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.