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Finding the Fourth Proportional to 18,854.56, 28,285.38 and 8,994.53

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Solution

The fourth proportional to 18,854.56, 28,285.38 and 8,994.53 is: 13,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.56 : 28,285.38 = 8,994.53 : x
  2. Step 2: Convert to fraction form
    18,854.56/28,285.38 = 8,994.53/x
  3. Step 3: Cross multiply
    18,854.56x = 28,285.38 × 8,994.53
  4. Step 4: Simplify right side
    18,854.56x = 254,413,698.97
  5. Step 5: Solve for x
    x = 254,413,698.97/18,854.56
  6. Step 6: Final answer
    x = 13,493.48

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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.