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Finding the Fourth Proportional to 5,300.79, 7,954.25 and 2,836.99

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Solution

The fourth proportional to 5,300.79, 7,954.25 and 2,836.99 is: 4,257.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.79 : 7,954.25 = 2,836.99 : x
  2. Step 2: Convert to fraction form
    5,300.79/7,954.25 = 2,836.99/x
  3. Step 3: Cross multiply
    5,300.79x = 7,954.25 × 2,836.99
  4. Step 4: Simplify right side
    5,300.79x = 22,566,139.42
  5. Step 5: Solve for x
    x = 22,566,139.42/5,300.79
  6. Step 6: Final answer
    x = 4,257.13

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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.