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Finding the Fourth Proportional to 22,336.40, 33,569.40 and 19,485.20

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Solution

The fourth proportional to 22,336.40, 33,569.40 and 19,485.20 is: 29,284.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,336.40 : 33,569.40 = 19,485.20 : x
  2. Step 2: Convert to fraction form
    22,336.40/33,569.40 = 19,485.20/x
  3. Step 3: Cross multiply
    22,336.40x = 33,569.40 × 19,485.20
  4. Step 4: Simplify right side
    22,336.40x = 654,106,472.88
  5. Step 5: Solve for x
    x = 654,106,472.88/22,336.40
  6. Step 6: Final answer
    x = 29,284.33

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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.