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Finding the Fourth Proportional to 9,059.67, 13,590.79 and 2,820.31

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Solution

The fourth proportional to 9,059.67, 13,590.79 and 2,820.31 is: 4,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,059.67 : 13,590.79 = 2,820.31 : x
  2. Step 2: Convert to fraction form
    9,059.67/13,590.79 = 2,820.31/x
  3. Step 3: Cross multiply
    9,059.67x = 13,590.79 × 2,820.31
  4. Step 4: Simplify right side
    9,059.67x = 38,330,226.84
  5. Step 5: Solve for x
    x = 38,330,226.84/9,059.67
  6. Step 6: Final answer
    x = 4,230.86

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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.