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Finding the Fourth Proportional to 3,668.80, 5,503.14 and 895.48

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Solution

The fourth proportional to 3,668.80, 5,503.14 and 895.48 is: 1,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.80 : 5,503.14 = 895.48 : x
  2. Step 2: Convert to fraction form
    3,668.80/5,503.14 = 895.48/x
  3. Step 3: Cross multiply
    3,668.80x = 5,503.14 × 895.48
  4. Step 4: Simplify right side
    3,668.80x = 4,927,951.81
  5. Step 5: Solve for x
    x = 4,927,951.81/3,668.80
  6. Step 6: Final answer
    x = 1,343.21

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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.