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Finding the Fourth Proportional to 22,326.28, 33,438.06 and 12,943.12

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Solution

The fourth proportional to 22,326.28, 33,438.06 and 12,943.12 is: 19,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,326.28 : 33,438.06 = 12,943.12 : x
  2. Step 2: Convert to fraction form
    22,326.28/33,438.06 = 12,943.12/x
  3. Step 3: Cross multiply
    22,326.28x = 33,438.06 × 12,943.12
  4. Step 4: Simplify right side
    22,326.28x = 432,792,823.15
  5. Step 5: Solve for x
    x = 432,792,823.15/22,326.28
  6. Step 6: Final answer
    x = 19,384.91

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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.