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Finding the Fourth Proportional to 6,885.60, 9,520.56 and 6,010.80

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Solution

The fourth proportional to 6,885.60, 9,520.56 and 6,010.80 is: 8,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.60 : 9,520.56 = 6,010.80 : x
  2. Step 2: Convert to fraction form
    6,885.60/9,520.56 = 6,010.80/x
  3. Step 3: Cross multiply
    6,885.60x = 9,520.56 × 6,010.80
  4. Step 4: Simplify right side
    6,885.60x = 57,226,182.05
  5. Step 5: Solve for x
    x = 57,226,182.05/6,885.60
  6. Step 6: Final answer
    x = 8,310.99

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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.