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Finding the Fourth Proportional to 1,674.52, 2,512.23 and 852.58

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Solution

The fourth proportional to 1,674.52, 2,512.23 and 852.58 is: 1,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.52 : 2,512.23 = 852.58 : x
  2. Step 2: Convert to fraction form
    1,674.52/2,512.23 = 852.58/x
  3. Step 3: Cross multiply
    1,674.52x = 2,512.23 × 852.58
  4. Step 4: Simplify right side
    1,674.52x = 2,141,877.05
  5. Step 5: Solve for x
    x = 2,141,877.05/1,674.52
  6. Step 6: Final answer
    x = 1,279.10

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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.