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Finding the Fourth Proportional to 1,615.04, 2,229.12 and 952

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Solution

The fourth proportional to 1,615.04, 2,229.12 and 952 is: 1,313.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.04 : 2,229.12 = 952 : x
  2. Step 2: Convert to fraction form
    1,615.04/2,229.12 = 952/x
  3. Step 3: Cross multiply
    1,615.04x = 2,229.12 × 952
  4. Step 4: Simplify right side
    1,615.04x = 2,122,122.24
  5. Step 5: Solve for x
    x = 2,122,122.24/1,615.04
  6. Step 6: Final answer
    x = 1,313.98

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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.