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Finding the Fourth Proportional to 6,115.60, 8,567.60 and 6,115.60

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Solution

The fourth proportional to 6,115.60, 8,567.60 and 6,115.60 is: 8,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.60 : 8,567.60 = 6,115.60 : x
  2. Step 2: Convert to fraction form
    6,115.60/8,567.60 = 6,115.60/x
  3. Step 3: Cross multiply
    6,115.60x = 8,567.60 × 6,115.60
  4. Step 4: Simplify right side
    6,115.60x = 52,396,014.56
  5. Step 5: Solve for x
    x = 52,396,014.56/6,115.60
  6. Step 6: Final answer
    x = 8,567.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.