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Finding the Fourth Proportional to 54,930.60, 82,391.10 and 17,994.60

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Solution

The fourth proportional to 54,930.60, 82,391.10 and 17,994.60 is: 26,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,930.60 : 82,391.10 = 17,994.60 : x
  2. Step 2: Convert to fraction form
    54,930.60/82,391.10 = 17,994.60/x
  3. Step 3: Cross multiply
    54,930.60x = 82,391.10 × 17,994.60
  4. Step 4: Simplify right side
    54,930.60x = 1,482,594,888.06
  5. Step 5: Solve for x
    x = 1,482,594,888.06/54,930.60
  6. Step 6: Final answer
    x = 26,990.33

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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.