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Finding the Fourth Proportional to 29,135.76, 40,207.22 and 16,560.50

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Solution

The fourth proportional to 29,135.76, 40,207.22 and 16,560.50 is: 22,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,135.76 : 40,207.22 = 16,560.50 : x
  2. Step 2: Convert to fraction form
    29,135.76/40,207.22 = 16,560.50/x
  3. Step 3: Cross multiply
    29,135.76x = 40,207.22 × 16,560.50
  4. Step 4: Simplify right side
    29,135.76x = 665,851,666.81
  5. Step 5: Solve for x
    x = 665,851,666.81/29,135.76
  6. Step 6: Final answer
    x = 22,853.42

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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.