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Finding the Fourth Proportional to 28,937.16, 39,940.02 and 16,365.96

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Solution

The fourth proportional to 28,937.16, 39,940.02 and 16,365.96 is: 22,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.16 : 39,940.02 = 16,365.96 : x
  2. Step 2: Convert to fraction form
    28,937.16/39,940.02 = 16,365.96/x
  3. Step 3: Cross multiply
    28,937.16x = 39,940.02 × 16,365.96
  4. Step 4: Simplify right side
    28,937.16x = 653,656,769.72
  5. Step 5: Solve for x
    x = 653,656,769.72/28,937.16
  6. Step 6: Final answer
    x = 22,588.84

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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.