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Finding the Fourth Proportional to 29,395.64, 40,566.62 and 16,820.44

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Solution

The fourth proportional to 29,395.64, 40,566.62 and 16,820.44 is: 23,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,395.64 : 40,566.62 = 16,820.44 : x
  2. Step 2: Convert to fraction form
    29,395.64/40,566.62 = 16,820.44/x
  3. Step 3: Cross multiply
    29,395.64x = 40,566.62 × 16,820.44
  4. Step 4: Simplify right side
    29,395.64x = 682,348,397.71
  5. Step 5: Solve for x
    x = 682,348,397.71/29,395.64
  6. Step 6: Final answer
    x = 23,212.57

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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.