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Finding the Fourth Proportional to 40,155.99, 55,412.92 and 22,249.92

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Solution

The fourth proportional to 40,155.99, 55,412.92 and 22,249.92 is: 30,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.99 : 55,412.92 = 22,249.92 : x
  2. Step 2: Convert to fraction form
    40,155.99/55,412.92 = 22,249.92/x
  3. Step 3: Cross multiply
    40,155.99x = 55,412.92 × 22,249.92
  4. Step 4: Simplify right side
    40,155.99x = 1,232,933,036.97
  5. Step 5: Solve for x
    x = 1,232,933,036.97/40,155.99
  6. Step 6: Final answer
    x = 30,703.59

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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.