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Finding the Fourth Proportional to 18,641.18, 27,966.63 and 6,954.50

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Solution

The fourth proportional to 18,641.18, 27,966.63 and 6,954.50 is: 10,433.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.18 : 27,966.63 = 6,954.50 : x
  2. Step 2: Convert to fraction form
    18,641.18/27,966.63 = 6,954.50/x
  3. Step 3: Cross multiply
    18,641.18x = 27,966.63 × 6,954.50
  4. Step 4: Simplify right side
    18,641.18x = 194,493,928.34
  5. Step 5: Solve for x
    x = 194,493,928.34/18,641.18
  6. Step 6: Final answer
    x = 10,433.56

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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.