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Finding the Fourth Proportional to 1,934.64, 2,902.54 and 702.62

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Solution

The fourth proportional to 1,934.64, 2,902.54 and 702.62 is: 1,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.64 : 2,902.54 = 702.62 : x
  2. Step 2: Convert to fraction form
    1,934.64/2,902.54 = 702.62/x
  3. Step 3: Cross multiply
    1,934.64x = 2,902.54 × 702.62
  4. Step 4: Simplify right side
    1,934.64x = 2,039,382.65
  5. Step 5: Solve for x
    x = 2,039,382.65/1,934.64
  6. Step 6: Final answer
    x = 1,054.14

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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.