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Finding the Fourth Proportional to 14,323.74, 21,480.29 and 4,961.25

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Solution

The fourth proportional to 14,323.74, 21,480.29 and 4,961.25 is: 7,440.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,323.74 : 21,480.29 = 4,961.25 : x
  2. Step 2: Convert to fraction form
    14,323.74/21,480.29 = 4,961.25/x
  3. Step 3: Cross multiply
    14,323.74x = 21,480.29 × 4,961.25
  4. Step 4: Simplify right side
    14,323.74x = 106,569,082.56
  5. Step 5: Solve for x
    x = 106,569,082.56/14,323.74
  6. Step 6: Final answer
    x = 7,440.03

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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.