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Finding the Fourth Proportional to 4,751.73, 7,110.12 and 2,870.91

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Solution

The fourth proportional to 4,751.73, 7,110.12 and 2,870.91 is: 4,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.73 : 7,110.12 = 2,870.91 : x
  2. Step 2: Convert to fraction form
    4,751.73/7,110.12 = 2,870.91/x
  3. Step 3: Cross multiply
    4,751.73x = 7,110.12 × 2,870.91
  4. Step 4: Simplify right side
    4,751.73x = 20,412,514.61
  5. Step 5: Solve for x
    x = 20,412,514.61/4,751.73
  6. Step 6: Final answer
    x = 4,295.81

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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.