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Finding the Fourth Proportional to 2,972, 4,458.72 and 2,093.96

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Solution

The fourth proportional to 2,972, 4,458.72 and 2,093.96 is: 3,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972 : 4,458.72 = 2,093.96 : x
  2. Step 2: Convert to fraction form
    2,972/4,458.72 = 2,093.96/x
  3. Step 3: Cross multiply
    2,972x = 4,458.72 × 2,093.96
  4. Step 4: Simplify right side
    2,972x = 9,336,381.33
  5. Step 5: Solve for x
    x = 9,336,381.33/2,972
  6. Step 6: Final answer
    x = 3,141.45

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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.