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Finding the Fourth Proportional to 4,927.68, 7,391.99 and 1,417.68

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Solution

The fourth proportional to 4,927.68, 7,391.99 and 1,417.68 is: 2,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.68 : 7,391.99 = 1,417.68 : x
  2. Step 2: Convert to fraction form
    4,927.68/7,391.99 = 1,417.68/x
  3. Step 3: Cross multiply
    4,927.68x = 7,391.99 × 1,417.68
  4. Step 4: Simplify right side
    4,927.68x = 10,479,469.29
  5. Step 5: Solve for x
    x = 10,479,469.29/4,927.68
  6. Step 6: Final answer
    x = 2,126.65

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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.