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Finding the Fourth Proportional to 25,615, 35,377.86 and 17,216.92

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Solution

The fourth proportional to 25,615, 35,377.86 and 17,216.92 is: 23,778.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615 : 35,377.86 = 17,216.92 : x
  2. Step 2: Convert to fraction form
    25,615/35,377.86 = 17,216.92/x
  3. Step 3: Cross multiply
    25,615x = 35,377.86 × 17,216.92
  4. Step 4: Simplify right side
    25,615x = 609,097,785.39
  5. Step 5: Solve for x
    x = 609,097,785.39/25,615
  6. Step 6: Final answer
    x = 23,778.95

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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.