Home / 38,686.75-53,399.11-25,260.09

Finding the Fourth Proportional to 38,686.75, 53,399.11 and 25,260.09

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Solution

The fourth proportional to 38,686.75, 53,399.11 and 25,260.09 is: 34,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,686.75 : 53,399.11 = 25,260.09 : x
  2. Step 2: Convert to fraction form
    38,686.75/53,399.11 = 25,260.09/x
  3. Step 3: Cross multiply
    38,686.75x = 53,399.11 × 25,260.09
  4. Step 4: Simplify right side
    38,686.75x = 1,348,866,324.52
  5. Step 5: Solve for x
    x = 1,348,866,324.52/38,686.75
  6. Step 6: Final answer
    x = 34,866.36

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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.