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Finding the Fourth Proportional to 33,829.56, 46,689.69 and 19,690.20

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Solution

The fourth proportional to 33,829.56, 46,689.69 and 19,690.20 is: 27,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,829.56 : 46,689.69 = 19,690.20 : x
  2. Step 2: Convert to fraction form
    33,829.56/46,689.69 = 19,690.20/x
  3. Step 3: Cross multiply
    33,829.56x = 46,689.69 × 19,690.20
  4. Step 4: Simplify right side
    33,829.56x = 919,329,334.04
  5. Step 5: Solve for x
    x = 919,329,334.04/33,829.56
  6. Step 6: Final answer
    x = 27,175.33

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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.