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Finding the Fourth Proportional to 25,451.26, 35,122.78 and 14,120.40

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Solution

The fourth proportional to 25,451.26, 35,122.78 and 14,120.40 is: 19,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.26 : 35,122.78 = 14,120.40 : x
  2. Step 2: Convert to fraction form
    25,451.26/35,122.78 = 14,120.40/x
  3. Step 3: Cross multiply
    25,451.26x = 35,122.78 × 14,120.40
  4. Step 4: Simplify right side
    25,451.26x = 495,947,702.71
  5. Step 5: Solve for x
    x = 495,947,702.71/25,451.26
  6. Step 6: Final answer
    x = 19,486.17

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