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Finding the Fourth Proportional to 29,412.32, 40,588.62 and 15,983.42

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Solution

The fourth proportional to 29,412.32, 40,588.62 and 15,983.42 is: 22,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,412.32 : 40,588.62 = 15,983.42 : x
  2. Step 2: Convert to fraction form
    29,412.32/40,588.62 = 15,983.42/x
  3. Step 3: Cross multiply
    29,412.32x = 40,588.62 × 15,983.42
  4. Step 4: Simplify right side
    29,412.32x = 648,744,960.68
  5. Step 5: Solve for x
    x = 648,744,960.68/29,412.32
  6. Step 6: Final answer
    x = 22,056.91

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