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Finding the Fourth Proportional to 25,348.77, 34,981.38 and 14,170.77

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Solution

The fourth proportional to 25,348.77, 34,981.38 and 14,170.77 is: 19,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,348.77 : 34,981.38 = 14,170.77 : x
  2. Step 2: Convert to fraction form
    25,348.77/34,981.38 = 14,170.77/x
  3. Step 3: Cross multiply
    25,348.77x = 34,981.38 × 14,170.77
  4. Step 4: Simplify right side
    25,348.77x = 495,713,090.26
  5. Step 5: Solve for x
    x = 495,713,090.26/25,348.77
  6. Step 6: Final answer
    x = 19,555.71

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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.