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Finding the Fourth Proportional to 33,320.12, 49,980.20 and 8,696.12

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Solution

The fourth proportional to 33,320.12, 49,980.20 and 8,696.12 is: 13,044.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,320.12 : 49,980.20 = 8,696.12 : x
  2. Step 2: Convert to fraction form
    33,320.12/49,980.20 = 8,696.12/x
  3. Step 3: Cross multiply
    33,320.12x = 49,980.20 × 8,696.12
  4. Step 4: Simplify right side
    33,320.12x = 434,633,816.82
  5. Step 5: Solve for x
    x = 434,633,816.82/33,320.12
  6. Step 6: Final answer
    x = 13,044.19

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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.