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Finding the Fourth Proportional to 18,436.46, 27,654.63 and 4,585.46

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Solution

The fourth proportional to 18,436.46, 27,654.63 and 4,585.46 is: 6,878.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.46 : 27,654.63 = 4,585.46 : x
  2. Step 2: Convert to fraction form
    18,436.46/27,654.63 = 4,585.46/x
  3. Step 3: Cross multiply
    18,436.46x = 27,654.63 × 4,585.46
  4. Step 4: Simplify right side
    18,436.46x = 126,809,061.41
  5. Step 5: Solve for x
    x = 126,809,061.41/18,436.46
  6. Step 6: Final answer
    x = 6,878.17

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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.