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Finding the Fourth Proportional to 3,668.51, 5,502.36 and 1,071.47

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Solution

The fourth proportional to 3,668.51, 5,502.36 and 1,071.47 is: 1,607.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.51 : 5,502.36 = 1,071.47 : x
  2. Step 2: Convert to fraction form
    3,668.51/5,502.36 = 1,071.47/x
  3. Step 3: Cross multiply
    3,668.51x = 5,502.36 × 1,071.47
  4. Step 4: Simplify right side
    3,668.51x = 5,895,613.67
  5. Step 5: Solve for x
    x = 5,895,613.67/3,668.51
  6. Step 6: Final answer
    x = 1,607.09

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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.