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Finding the Fourth Proportional to 25,799.22, 38,698.87 and 7,079.51

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Solution

The fourth proportional to 25,799.22, 38,698.87 and 7,079.51 is: 10,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,799.22 : 38,698.87 = 7,079.51 : x
  2. Step 2: Convert to fraction form
    25,799.22/38,698.87 = 7,079.51/x
  3. Step 3: Cross multiply
    25,799.22x = 38,698.87 × 7,079.51
  4. Step 4: Simplify right side
    25,799.22x = 273,969,019.45
  5. Step 5: Solve for x
    x = 273,969,019.45/25,799.22
  6. Step 6: Final answer
    x = 10,619.28

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1.5x scale

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.