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Finding the Fourth Proportional to 30,473.60, 42,093.72 and 23,387.84

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Solution

The fourth proportional to 30,473.60, 42,093.72 and 23,387.84 is: 32,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,473.60 : 42,093.72 = 23,387.84 : x
  2. Step 2: Convert to fraction form
    30,473.60/42,093.72 = 23,387.84/x
  3. Step 3: Cross multiply
    30,473.60x = 42,093.72 × 23,387.84
  4. Step 4: Simplify right side
    30,473.60x = 984,481,188.36
  5. Step 5: Solve for x
    x = 984,481,188.36/30,473.60
  6. Step 6: Final answer
    x = 32,306.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.