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Finding the Fourth Proportional to 7,060.67, 9,739.64 and 5,858.78

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Solution

The fourth proportional to 7,060.67, 9,739.64 and 5,858.78 is: 8,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.67 : 9,739.64 = 5,858.78 : x
  2. Step 2: Convert to fraction form
    7,060.67/9,739.64 = 5,858.78/x
  3. Step 3: Cross multiply
    7,060.67x = 9,739.64 × 5,858.78
  4. Step 4: Simplify right side
    7,060.67x = 57,062,428.77
  5. Step 5: Solve for x
    x = 57,062,428.77/7,060.67
  6. Step 6: Final answer
    x = 8,081.73

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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.