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Finding the Fourth Proportional to 32,408.05, 48,583.28 and 21,320.05

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Solution

The fourth proportional to 32,408.05, 48,583.28 and 21,320.05 is: 31,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,408.05 : 48,583.28 = 21,320.05 : x
  2. Step 2: Convert to fraction form
    32,408.05/48,583.28 = 21,320.05/x
  3. Step 3: Cross multiply
    32,408.05x = 48,583.28 × 21,320.05
  4. Step 4: Simplify right side
    32,408.05x = 1,035,797,852.16
  5. Step 5: Solve for x
    x = 1,035,797,852.16/32,408.05
  6. Step 6: Final answer
    x = 31,961.13

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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.