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Finding the Fourth Proportional to 25,502.85, 38,248.81 and 7,963.11

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Solution

The fourth proportional to 25,502.85, 38,248.81 and 7,963.11 is: 11,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,502.85 : 38,248.81 = 7,963.11 : x
  2. Step 2: Convert to fraction form
    25,502.85/38,248.81 = 7,963.11/x
  3. Step 3: Cross multiply
    25,502.85x = 38,248.81 × 7,963.11
  4. Step 4: Simplify right side
    25,502.85x = 304,579,461.49
  5. Step 5: Solve for x
    x = 304,579,461.49/25,502.85
  6. Step 6: Final answer
    x = 11,942.96

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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.