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Finding the Fourth Proportional to 34,712.64, 52,078.72 and 13,950.72

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Solution

The fourth proportional to 34,712.64, 52,078.72 and 13,950.72 is: 20,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,712.64 : 52,078.72 = 13,950.72 : x
  2. Step 2: Convert to fraction form
    34,712.64/52,078.72 = 13,950.72/x
  3. Step 3: Cross multiply
    34,712.64x = 52,078.72 × 13,950.72
  4. Step 4: Simplify right side
    34,712.64x = 726,535,640.68
  5. Step 5: Solve for x
    x = 726,535,640.68/34,712.64
  6. Step 6: Final answer
    x = 20,930.00

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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.