Home / 25,790.88-35,579.28-18,701.76

Finding the Fourth Proportional to 25,790.88, 35,579.28 and 18,701.76

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Solution

The fourth proportional to 25,790.88, 35,579.28 and 18,701.76 is: 25,799.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,790.88 : 35,579.28 = 18,701.76 : x
  2. Step 2: Convert to fraction form
    25,790.88/35,579.28 = 18,701.76/x
  3. Step 3: Cross multiply
    25,790.88x = 35,579.28 × 18,701.76
  4. Step 4: Simplify right side
    25,790.88x = 665,395,155.53
  5. Step 5: Solve for x
    x = 665,395,155.53/25,790.88
  6. Step 6: Final answer
    x = 25,799.63

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1.5x scale

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.