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Finding the Fourth Proportional to 18,673.32, 27,994.86 and 6,984.84

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Solution

The fourth proportional to 18,673.32, 27,994.86 and 6,984.84 is: 10,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.32 : 27,994.86 = 6,984.84 : x
  2. Step 2: Convert to fraction form
    18,673.32/27,994.86 = 6,984.84/x
  3. Step 3: Cross multiply
    18,673.32x = 27,994.86 × 6,984.84
  4. Step 4: Simplify right side
    18,673.32x = 195,539,617.92
  5. Step 5: Solve for x
    x = 195,539,617.92/18,673.32
  6. Step 6: Final answer
    x = 10,471.60

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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.