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Finding the Fourth Proportional to 75,653.88, 113,447.99 and 25,720.56

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Solution

The fourth proportional to 75,653.88, 113,447.99 and 25,720.56 is: 38,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,653.88 : 113,447.99 = 25,720.56 : x
  2. Step 2: Convert to fraction form
    75,653.88/113,447.99 = 25,720.56/x
  3. Step 3: Cross multiply
    75,653.88x = 113,447.99 × 25,720.56
  4. Step 4: Simplify right side
    75,653.88x = 2,917,945,833.67
  5. Step 5: Solve for x
    x = 2,917,945,833.67/75,653.88
  6. Step 6: Final answer
    x = 38,569.68

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1.5x scale

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.