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Finding the Fourth Proportional to 30,620.57, 45,930.84 and 9,562.41

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Solution

The fourth proportional to 30,620.57, 45,930.84 and 9,562.41 is: 14,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.57 : 45,930.84 = 9,562.41 : x
  2. Step 2: Convert to fraction form
    30,620.57/45,930.84 = 9,562.41/x
  3. Step 3: Cross multiply
    30,620.57x = 45,930.84 × 9,562.41
  4. Step 4: Simplify right side
    30,620.57x = 439,209,660.11
  5. Step 5: Solve for x
    x = 439,209,660.11/30,620.57
  6. Step 6: Final answer
    x = 14,343.62

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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.