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Finding the Fourth Proportional to 15,773.70, 21,760.59 and 9,057.66

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Solution

The fourth proportional to 15,773.70, 21,760.59 and 9,057.66 is: 12,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,773.70 : 21,760.59 = 9,057.66 : x
  2. Step 2: Convert to fraction form
    15,773.70/21,760.59 = 9,057.66/x
  3. Step 3: Cross multiply
    15,773.70x = 21,760.59 × 9,057.66
  4. Step 4: Simplify right side
    15,773.70x = 197,100,025.62
  5. Step 5: Solve for x
    x = 197,100,025.62/15,773.70
  6. Step 6: Final answer
    x = 12,495.48

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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.