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Finding the Fourth Proportional to 25,753.79, 35,541.11 and 15,144.41

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Solution

The fourth proportional to 25,753.79, 35,541.11 and 15,144.41 is: 20,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,753.79 : 35,541.11 = 15,144.41 : x
  2. Step 2: Convert to fraction form
    25,753.79/35,541.11 = 15,144.41/x
  3. Step 3: Cross multiply
    25,753.79x = 35,541.11 × 15,144.41
  4. Step 4: Simplify right side
    25,753.79x = 538,249,141.70
  5. Step 5: Solve for x
    x = 538,249,141.70/25,753.79
  6. Step 6: Final answer
    x = 20,899.80

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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.