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Finding the Fourth Proportional to 30,480.71, 45,606.75 and 25,218.24

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Solution

The fourth proportional to 30,480.71, 45,606.75 and 25,218.24 is: 37,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.71 : 45,606.75 = 25,218.24 : x
  2. Step 2: Convert to fraction form
    30,480.71/45,606.75 = 25,218.24/x
  3. Step 3: Cross multiply
    30,480.71x = 45,606.75 × 25,218.24
  4. Step 4: Simplify right side
    30,480.71x = 1,150,121,701.53
  5. Step 5: Solve for x
    x = 1,150,121,701.53/30,480.71
  6. Step 6: Final answer
    x = 37,732.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.