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Finding the Fourth Proportional to 33,870.80, 46,738.14 and 18,763.10

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Solution

The fourth proportional to 33,870.80, 46,738.14 and 18,763.10 is: 25,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,870.80 : 46,738.14 = 18,763.10 : x
  2. Step 2: Convert to fraction form
    33,870.80/46,738.14 = 18,763.10/x
  3. Step 3: Cross multiply
    33,870.80x = 46,738.14 × 18,763.10
  4. Step 4: Simplify right side
    33,870.80x = 876,952,394.63
  5. Step 5: Solve for x
    x = 876,952,394.63/33,870.80
  6. Step 6: Final answer
    x = 25,891.10

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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.