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Finding the Fourth Proportional to 7,060.75, 10,607.67 and 6,661.79

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Solution

The fourth proportional to 7,060.75, 10,607.67 and 6,661.79 is: 10,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.75 : 10,607.67 = 6,661.79 : x
  2. Step 2: Convert to fraction form
    7,060.75/10,607.67 = 6,661.79/x
  3. Step 3: Cross multiply
    7,060.75x = 10,607.67 × 6,661.79
  4. Step 4: Simplify right side
    7,060.75x = 70,666,069.93
  5. Step 5: Solve for x
    x = 70,666,069.93/7,060.75
  6. Step 6: Final answer
    x = 10,008.30

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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.