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Finding the Fourth Proportional to 33,411.40, 46,107.78 and 18,507.40

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Solution

The fourth proportional to 33,411.40, 46,107.78 and 18,507.40 is: 25,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,411.40 : 46,107.78 = 18,507.40 : x
  2. Step 2: Convert to fraction form
    33,411.40/46,107.78 = 18,507.40/x
  3. Step 3: Cross multiply
    33,411.40x = 46,107.78 × 18,507.40
  4. Step 4: Simplify right side
    33,411.40x = 853,335,127.57
  5. Step 5: Solve for x
    x = 853,335,127.57/33,411.40
  6. Step 6: Final answer
    x = 25,540.24

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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.