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Finding the Fourth Proportional to 3,392.82, 5,085.05 and 1,927.53

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Solution

The fourth proportional to 3,392.82, 5,085.05 and 1,927.53 is: 2,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.82 : 5,085.05 = 1,927.53 : x
  2. Step 2: Convert to fraction form
    3,392.82/5,085.05 = 1,927.53/x
  3. Step 3: Cross multiply
    3,392.82x = 5,085.05 × 1,927.53
  4. Step 4: Simplify right side
    3,392.82x = 9,801,576.79
  5. Step 5: Solve for x
    x = 9,801,576.79/3,392.82
  6. Step 6: Final answer
    x = 2,888.92

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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.