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Finding the Fourth Proportional to 30,641.97, 45,947.82 and 17,994.90

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Solution

The fourth proportional to 30,641.97, 45,947.82 and 17,994.90 is: 26,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.97 : 45,947.82 = 17,994.90 : x
  2. Step 2: Convert to fraction form
    30,641.97/45,947.82 = 17,994.90/x
  3. Step 3: Cross multiply
    30,641.97x = 45,947.82 × 17,994.90
  4. Step 4: Simplify right side
    30,641.97x = 826,826,426.12
  5. Step 5: Solve for x
    x = 826,826,426.12/30,641.97
  6. Step 6: Final answer
    x = 26,983.46

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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.