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Finding the Fourth Proportional to 20,624.61, 30,935.09 and 5,833.20

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Solution

The fourth proportional to 20,624.61, 30,935.09 and 5,833.20 is: 8,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.61 : 30,935.09 = 5,833.20 : x
  2. Step 2: Convert to fraction form
    20,624.61/30,935.09 = 5,833.20/x
  3. Step 3: Cross multiply
    20,624.61x = 30,935.09 × 5,833.20
  4. Step 4: Simplify right side
    20,624.61x = 180,450,537.82
  5. Step 5: Solve for x
    x = 180,450,537.82/20,624.61
  6. Step 6: Final answer
    x = 8,749.28

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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.