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Finding the Fourth Proportional to 33,307.90, 49,969.71 and 10,818.51

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Solution

The fourth proportional to 33,307.90, 49,969.71 and 10,818.51 is: 16,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,307.90 : 49,969.71 = 10,818.51 : x
  2. Step 2: Convert to fraction form
    33,307.90/49,969.71 = 10,818.51/x
  3. Step 3: Cross multiply
    33,307.90x = 49,969.71 × 10,818.51
  4. Step 4: Simplify right side
    33,307.90x = 540,597,619.95
  5. Step 5: Solve for x
    x = 540,597,619.95/33,307.90
  6. Step 6: Final answer
    x = 16,230.31

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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.