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Finding the Fourth Proportional to 8,755.60, 12,069.32 and 6,230.16

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Solution

The fourth proportional to 8,755.60, 12,069.32 and 6,230.16 is: 8,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.60 : 12,069.32 = 6,230.16 : x
  2. Step 2: Convert to fraction form
    8,755.60/12,069.32 = 6,230.16/x
  3. Step 3: Cross multiply
    8,755.60x = 12,069.32 × 6,230.16
  4. Step 4: Simplify right side
    8,755.60x = 75,193,794.69
  5. Step 5: Solve for x
    x = 75,193,794.69/8,755.60
  6. Step 6: Final answer
    x = 8,588.08

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1.5x scale

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.