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Finding the Fourth Proportional to 6,712.40, 10,047.85 and 6,613.99

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Solution

The fourth proportional to 6,712.40, 10,047.85 and 6,613.99 is: 9,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.40 : 10,047.85 = 6,613.99 : x
  2. Step 2: Convert to fraction form
    6,712.40/10,047.85 = 6,613.99/x
  3. Step 3: Cross multiply
    6,712.40x = 10,047.85 × 6,613.99
  4. Step 4: Simplify right side
    6,712.40x = 66,456,337.77
  5. Step 5: Solve for x
    x = 66,456,337.77/6,712.40
  6. Step 6: Final answer
    x = 9,900.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.