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Finding the Fourth Proportional to 4,959, 7,440.93 and 2,039.76

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Solution

The fourth proportional to 4,959, 7,440.93 and 2,039.76 is: 3,060.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959 : 7,440.93 = 2,039.76 : x
  2. Step 2: Convert to fraction form
    4,959/7,440.93 = 2,039.76/x
  3. Step 3: Cross multiply
    4,959x = 7,440.93 × 2,039.76
  4. Step 4: Simplify right side
    4,959x = 15,177,711.38
  5. Step 5: Solve for x
    x = 15,177,711.38/4,959
  6. Step 6: Final answer
    x = 3,060.64

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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.