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Finding the Fourth Proportional to 2,392.02, 3,587.46 and 853.02

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Solution

The fourth proportional to 2,392.02, 3,587.46 and 853.02 is: 1,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.02 : 3,587.46 = 853.02 : x
  2. Step 2: Convert to fraction form
    2,392.02/3,587.46 = 853.02/x
  3. Step 3: Cross multiply
    2,392.02x = 3,587.46 × 853.02
  4. Step 4: Simplify right side
    2,392.02x = 3,060,175.13
  5. Step 5: Solve for x
    x = 3,060,175.13/2,392.02
  6. Step 6: Final answer
    x = 1,279.33

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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.