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Finding the Fourth Proportional to 33,307.87, 45,965.39 and 19,886.98

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Solution

The fourth proportional to 33,307.87, 45,965.39 and 19,886.98 is: 27,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,307.87 : 45,965.39 = 19,886.98 : x
  2. Step 2: Convert to fraction form
    33,307.87/45,965.39 = 19,886.98/x
  3. Step 3: Cross multiply
    33,307.87x = 45,965.39 × 19,886.98
  4. Step 4: Simplify right side
    33,307.87x = 914,112,791.62
  5. Step 5: Solve for x
    x = 914,112,791.62/33,307.87
  6. Step 6: Final answer
    x = 27,444.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.