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Finding the Fourth Proportional to 1,668.52, 2,302.50 and 922.48

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Solution

The fourth proportional to 1,668.52, 2,302.50 and 922.48 is: 1,272.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.52 : 2,302.50 = 922.48 : x
  2. Step 2: Convert to fraction form
    1,668.52/2,302.50 = 922.48/x
  3. Step 3: Cross multiply
    1,668.52x = 2,302.50 × 922.48
  4. Step 4: Simplify right side
    1,668.52x = 2,124,010.20
  5. Step 5: Solve for x
    x = 2,124,010.20/1,668.52
  6. Step 6: Final answer
    x = 1,272.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.