Home / 25,886.76-35,676.36-18,800.88

Finding the Fourth Proportional to 25,886.76, 35,676.36 and 18,800.88

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Solution

The fourth proportional to 25,886.76, 35,676.36 and 18,800.88 is: 25,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.76 : 35,676.36 = 18,800.88 : x
  2. Step 2: Convert to fraction form
    25,886.76/35,676.36 = 18,800.88/x
  3. Step 3: Cross multiply
    25,886.76x = 35,676.36 × 18,800.88
  4. Step 4: Simplify right side
    25,886.76x = 670,746,963.20
  5. Step 5: Solve for x
    x = 670,746,963.20/25,886.76
  6. Step 6: Final answer
    x = 25,910.81

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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.