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Finding the Fourth Proportional to 22,187.52, 33,303.15 and 13,439.52

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Solution

The fourth proportional to 22,187.52, 33,303.15 and 13,439.52 is: 20,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.52 : 33,303.15 = 13,439.52 : x
  2. Step 2: Convert to fraction form
    22,187.52/33,303.15 = 13,439.52/x
  3. Step 3: Cross multiply
    22,187.52x = 33,303.15 × 13,439.52
  4. Step 4: Simplify right side
    22,187.52x = 447,578,350.49
  5. Step 5: Solve for x
    x = 447,578,350.49/22,187.52
  6. Step 6: Final answer
    x = 20,172.53

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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.