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Finding the Fourth Proportional to 17,746.76, 26,574.62 and 17,221.21

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Solution

The fourth proportional to 17,746.76, 26,574.62 and 17,221.21 is: 25,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,746.76 : 26,574.62 = 17,221.21 : x
  2. Step 2: Convert to fraction form
    17,746.76/26,574.62 = 17,221.21/x
  3. Step 3: Cross multiply
    17,746.76x = 26,574.62 × 17,221.21
  4. Step 4: Simplify right side
    17,746.76x = 457,646,959.15
  5. Step 5: Solve for x
    x = 457,646,959.15/17,746.76
  6. Step 6: Final answer
    x = 25,787.63

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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.