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Finding the Fourth Proportional to 1,702.32, 2,553.72 and 1,052.16

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Solution

The fourth proportional to 1,702.32, 2,553.72 and 1,052.16 is: 1,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.32 : 2,553.72 = 1,052.16 : x
  2. Step 2: Convert to fraction form
    1,702.32/2,553.72 = 1,052.16/x
  3. Step 3: Cross multiply
    1,702.32x = 2,553.72 × 1,052.16
  4. Step 4: Simplify right side
    1,702.32x = 2,686,922.04
  5. Step 5: Solve for x
    x = 2,686,922.04/1,702.32
  6. Step 6: Final answer
    x = 1,578.39

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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.