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Finding the Fourth Proportional to 21,615.08, 29,834.46 and 14,082.08

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Solution

The fourth proportional to 21,615.08, 29,834.46 and 14,082.08 is: 19,436.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.08 : 29,834.46 = 14,082.08 : x
  2. Step 2: Convert to fraction form
    21,615.08/29,834.46 = 14,082.08/x
  3. Step 3: Cross multiply
    21,615.08x = 29,834.46 × 14,082.08
  4. Step 4: Simplify right side
    21,615.08x = 420,131,252.48
  5. Step 5: Solve for x
    x = 420,131,252.48/21,615.08
  6. Step 6: Final answer
    x = 19,436.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.