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Finding the Fourth Proportional to 36,920, 55,403.04 and 15,032

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Solution

The fourth proportional to 36,920, 55,403.04 and 15,032 is: 22,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,920 : 55,403.04 = 15,032 : x
  2. Step 2: Convert to fraction form
    36,920/55,403.04 = 15,032/x
  3. Step 3: Cross multiply
    36,920x = 55,403.04 × 15,032
  4. Step 4: Simplify right side
    36,920x = 832,818,497.28
  5. Step 5: Solve for x
    x = 832,818,497.28/36,920
  6. Step 6: Final answer
    x = 22,557.38

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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.