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Finding the Fourth Proportional to 33,109.40, 49,721.70 and 17,557.40

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Solution

The fourth proportional to 33,109.40, 49,721.70 and 17,557.40 is: 26,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,109.40 : 49,721.70 = 17,557.40 : x
  2. Step 2: Convert to fraction form
    33,109.40/49,721.70 = 17,557.40/x
  3. Step 3: Cross multiply
    33,109.40x = 49,721.70 × 17,557.40
  4. Step 4: Simplify right side
    33,109.40x = 872,983,775.58
  5. Step 5: Solve for x
    x = 872,983,775.58/33,109.40
  6. Step 6: Final answer
    x = 26,366.64

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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.