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Finding the Fourth Proportional to 3,668.32, 5,502.48 and 1,071.28

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Solution

The fourth proportional to 3,668.32, 5,502.48 and 1,071.28 is: 1,606.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.32 : 5,502.48 = 1,071.28 : x
  2. Step 2: Convert to fraction form
    3,668.32/5,502.48 = 1,071.28/x
  3. Step 3: Cross multiply
    3,668.32x = 5,502.48 × 1,071.28
  4. Step 4: Simplify right side
    3,668.32x = 5,894,696.77
  5. Step 5: Solve for x
    x = 5,894,696.77/3,668.32
  6. Step 6: Final answer
    x = 1,606.92

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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.