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Finding the Fourth Proportional to 29,319.96, 43,979.31 and 7,133.46

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Solution

The fourth proportional to 29,319.96, 43,979.31 and 7,133.46 is: 10,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,319.96 : 43,979.31 = 7,133.46 : x
  2. Step 2: Convert to fraction form
    29,319.96/43,979.31 = 7,133.46/x
  3. Step 3: Cross multiply
    29,319.96x = 43,979.31 × 7,133.46
  4. Step 4: Simplify right side
    29,319.96x = 313,724,648.71
  5. Step 5: Solve for x
    x = 313,724,648.71/29,319.96
  6. Step 6: Final answer
    x = 10,700.04

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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.