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Finding the Fourth Proportional to 29,221.31, 43,832.32 and 8,160.08

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Solution

The fourth proportional to 29,221.31, 43,832.32 and 8,160.08 is: 12,240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,221.31 : 43,832.32 = 8,160.08 : x
  2. Step 2: Convert to fraction form
    29,221.31/43,832.32 = 8,160.08/x
  3. Step 3: Cross multiply
    29,221.31x = 43,832.32 × 8,160.08
  4. Step 4: Simplify right side
    29,221.31x = 357,674,998.22
  5. Step 5: Solve for x
    x = 357,674,998.22/29,221.31
  6. Step 6: Final answer
    x = 12,240.21

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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.