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Finding the Fourth Proportional to 30,261.92, 45,392.64 and 11,793.92

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Solution

The fourth proportional to 30,261.92, 45,392.64 and 11,793.92 is: 17,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.92 : 45,392.64 = 11,793.92 : x
  2. Step 2: Convert to fraction form
    30,261.92/45,392.64 = 11,793.92/x
  3. Step 3: Cross multiply
    30,261.92x = 45,392.64 × 11,793.92
  4. Step 4: Simplify right side
    30,261.92x = 535,357,164.75
  5. Step 5: Solve for x
    x = 535,357,164.75/30,261.92
  6. Step 6: Final answer
    x = 17,690.79

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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.