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Finding the Fourth Proportional to 15,773.44, 21,767.31 and 9,059.50

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Solution

The fourth proportional to 15,773.44, 21,767.31 and 9,059.50 is: 12,502.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,773.44 : 21,767.31 = 9,059.50 : x
  2. Step 2: Convert to fraction form
    15,773.44/21,767.31 = 9,059.50/x
  3. Step 3: Cross multiply
    15,773.44x = 21,767.31 × 9,059.50
  4. Step 4: Simplify right side
    15,773.44x = 197,200,899.65
  5. Step 5: Solve for x
    x = 197,200,899.65/15,773.44
  6. Step 6: Final answer
    x = 12,502.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.