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Finding the Fourth Proportional to 7,610.88, 11,472.45 and 6,979.02

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Solution

The fourth proportional to 7,610.88, 11,472.45 and 6,979.02 is: 10,520.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.88 : 11,472.45 = 6,979.02 : x
  2. Step 2: Convert to fraction form
    7,610.88/11,472.45 = 6,979.02/x
  3. Step 3: Cross multiply
    7,610.88x = 11,472.45 × 6,979.02
  4. Step 4: Simplify right side
    7,610.88x = 80,066,458.00
  5. Step 5: Solve for x
    x = 80,066,458.00/7,610.88
  6. Step 6: Final answer
    x = 10,520.00

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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.