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Finding the Fourth Proportional to 22,266.40, 33,409.20 and 11,322.40

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Solution

The fourth proportional to 22,266.40, 33,409.20 and 11,322.40 is: 16,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.40 : 33,409.20 = 11,322.40 : x
  2. Step 2: Convert to fraction form
    22,266.40/33,409.20 = 11,322.40/x
  3. Step 3: Cross multiply
    22,266.40x = 33,409.20 × 11,322.40
  4. Step 4: Simplify right side
    22,266.40x = 378,272,326.08
  5. Step 5: Solve for x
    x = 378,272,326.08/22,266.40
  6. Step 6: Final answer
    x = 16,988.48

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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.