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Finding the Fourth Proportional to 2,915.82, 4,373.73 and 1,934.91

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Solution

The fourth proportional to 2,915.82, 4,373.73 and 1,934.91 is: 2,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.82 : 4,373.73 = 1,934.91 : x
  2. Step 2: Convert to fraction form
    2,915.82/4,373.73 = 1,934.91/x
  3. Step 3: Cross multiply
    2,915.82x = 4,373.73 × 1,934.91
  4. Step 4: Simplify right side
    2,915.82x = 8,462,773.91
  5. Step 5: Solve for x
    x = 8,462,773.91/2,915.82
  6. Step 6: Final answer
    x = 2,902.37

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1.5x scale

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.