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Finding the Fourth Proportional to 25,388.10, 35,035.29 and 14,057.82

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Solution

The fourth proportional to 25,388.10, 35,035.29 and 14,057.82 is: 19,399.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.10 : 35,035.29 = 14,057.82 : x
  2. Step 2: Convert to fraction form
    25,388.10/35,035.29 = 14,057.82/x
  3. Step 3: Cross multiply
    25,388.10x = 35,035.29 × 14,057.82
  4. Step 4: Simplify right side
    25,388.10x = 492,519,800.47
  5. Step 5: Solve for x
    x = 492,519,800.47/25,388.10
  6. Step 6: Final answer
    x = 19,399.63

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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.