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Finding the Fourth Proportional to 29,161.16, 40,221.67 and 19,465.73

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Solution

The fourth proportional to 29,161.16, 40,221.67 and 19,465.73 is: 26,848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,161.16 : 40,221.67 = 19,465.73 : x
  2. Step 2: Convert to fraction form
    29,161.16/40,221.67 = 19,465.73/x
  3. Step 3: Cross multiply
    29,161.16x = 40,221.67 × 19,465.73
  4. Step 4: Simplify right side
    29,161.16x = 782,944,168.37
  5. Step 5: Solve for x
    x = 782,944,168.37/29,161.16
  6. Step 6: Final answer
    x = 26,848.87

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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.