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Finding the Fourth Proportional to 30,624.88, 45,932.06 and 8,433.32

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Solution

The fourth proportional to 30,624.88, 45,932.06 and 8,433.32 is: 12,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.88 : 45,932.06 = 8,433.32 : x
  2. Step 2: Convert to fraction form
    30,624.88/45,932.06 = 8,433.32/x
  3. Step 3: Cross multiply
    30,624.88x = 45,932.06 × 8,433.32
  4. Step 4: Simplify right side
    30,624.88x = 387,359,760.24
  5. Step 5: Solve for x
    x = 387,359,760.24/30,624.88
  6. Step 6: Final answer
    x = 12,648.53

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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.