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Finding the Fourth Proportional to 6,566.60, 9,886.96 and 5,791.60

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Solution

The fourth proportional to 6,566.60, 9,886.96 and 5,791.60 is: 8,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,566.60 : 9,886.96 = 5,791.60 : x
  2. Step 2: Convert to fraction form
    6,566.60/9,886.96 = 5,791.60/x
  3. Step 3: Cross multiply
    6,566.60x = 9,886.96 × 5,791.60
  4. Step 4: Simplify right side
    6,566.60x = 57,261,317.54
  5. Step 5: Solve for x
    x = 57,261,317.54/6,566.60
  6. Step 6: Final answer
    x = 8,720.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.