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Finding the Fourth Proportional to 4,948.79, 7,423.79 and 2,314.94

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Solution

The fourth proportional to 4,948.79, 7,423.79 and 2,314.94 is: 3,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.79 : 7,423.79 = 2,314.94 : x
  2. Step 2: Convert to fraction form
    4,948.79/7,423.79 = 2,314.94/x
  3. Step 3: Cross multiply
    4,948.79x = 7,423.79 × 2,314.94
  4. Step 4: Simplify right side
    4,948.79x = 17,185,579.73
  5. Step 5: Solve for x
    x = 17,185,579.73/4,948.79
  6. Step 6: Final answer
    x = 3,472.69

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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.