Home / 25,775.16-38,659.33-11,720.04

Finding the Fourth Proportional to 25,775.16, 38,659.33 and 11,720.04

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Solution

The fourth proportional to 25,775.16, 38,659.33 and 11,720.04 is: 17,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,775.16 : 38,659.33 = 11,720.04 : x
  2. Step 2: Convert to fraction form
    25,775.16/38,659.33 = 11,720.04/x
  3. Step 3: Cross multiply
    25,775.16x = 38,659.33 × 11,720.04
  4. Step 4: Simplify right side
    25,775.16x = 453,088,915.18
  5. Step 5: Solve for x
    x = 453,088,915.18/25,775.16
  6. Step 6: Final answer
    x = 17,578.51

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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.