Home / 25,275.12-34,879.79-13,944.75

Finding the Fourth Proportional to 25,275.12, 34,879.79 and 13,944.75

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Solution

The fourth proportional to 25,275.12, 34,879.79 and 13,944.75 is: 19,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,275.12 : 34,879.79 = 13,944.75 : x
  2. Step 2: Convert to fraction form
    25,275.12/34,879.79 = 13,944.75/x
  3. Step 3: Cross multiply
    25,275.12x = 34,879.79 × 13,944.75
  4. Step 4: Simplify right side
    25,275.12x = 486,389,881.88
  5. Step 5: Solve for x
    x = 486,389,881.88/25,275.12
  6. Step 6: Final answer
    x = 19,243.82

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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.