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Finding the Fourth Proportional to 22,496.80, 33,716.40 and 19,904.80

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Solution

The fourth proportional to 22,496.80, 33,716.40 and 19,904.80 is: 29,831.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,496.80 : 33,716.40 = 19,904.80 : x
  2. Step 2: Convert to fraction form
    22,496.80/33,716.40 = 19,904.80/x
  3. Step 3: Cross multiply
    22,496.80x = 33,716.40 × 19,904.80
  4. Step 4: Simplify right side
    22,496.80x = 671,118,198.72
  5. Step 5: Solve for x
    x = 671,118,198.72/22,496.80
  6. Step 6: Final answer
    x = 29,831.72

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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.