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Finding the Fourth Proportional to 32,972, 49,443.22 and 19,651.28

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Solution

The fourth proportional to 32,972, 49,443.22 and 19,651.28 is: 29,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,972 : 49,443.22 = 19,651.28 : x
  2. Step 2: Convert to fraction form
    32,972/49,443.22 = 19,651.28/x
  3. Step 3: Cross multiply
    32,972x = 49,443.22 × 19,651.28
  4. Step 4: Simplify right side
    32,972x = 971,622,560.32
  5. Step 5: Solve for x
    x = 971,622,560.32/32,972
  6. Step 6: Final answer
    x = 29,468.11

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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.