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Finding the Fourth Proportional to 29,651.10, 40,918.17 and 16,222.20

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Solution

The fourth proportional to 29,651.10, 40,918.17 and 16,222.20 is: 22,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.10 : 40,918.17 = 16,222.20 : x
  2. Step 2: Convert to fraction form
    29,651.10/40,918.17 = 16,222.20/x
  3. Step 3: Cross multiply
    29,651.10x = 40,918.17 × 16,222.20
  4. Step 4: Simplify right side
    29,651.10x = 663,782,737.37
  5. Step 5: Solve for x
    x = 663,782,737.37/29,651.10
  6. Step 6: Final answer
    x = 22,386.45

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1.5x scale

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.