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Finding the Fourth Proportional to 7,766.01, 10,716.15 and 4,579.11

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Solution

The fourth proportional to 7,766.01, 10,716.15 and 4,579.11 is: 6,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.01 : 10,716.15 = 4,579.11 : x
  2. Step 2: Convert to fraction form
    7,766.01/10,716.15 = 4,579.11/x
  3. Step 3: Cross multiply
    7,766.01x = 10,716.15 × 4,579.11
  4. Step 4: Simplify right side
    7,766.01x = 49,070,429.63
  5. Step 5: Solve for x
    x = 49,070,429.63/7,766.01
  6. Step 6: Final answer
    x = 6,318.62

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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.