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Finding the Fourth Proportional to 7,110.59, 10,668.65 and 2,949.55

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Solution

The fourth proportional to 7,110.59, 10,668.65 and 2,949.55 is: 4,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.59 : 10,668.65 = 2,949.55 : x
  2. Step 2: Convert to fraction form
    7,110.59/10,668.65 = 2,949.55/x
  3. Step 3: Cross multiply
    7,110.59x = 10,668.65 × 2,949.55
  4. Step 4: Simplify right side
    7,110.59x = 31,467,675.19
  5. Step 5: Solve for x
    x = 31,467,675.19/7,110.59
  6. Step 6: Final answer
    x = 4,425.47

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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.