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Finding the Fourth Proportional to 28,652.66, 39,542.46 and 16,553.66

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Solution

The fourth proportional to 28,652.66, 39,542.46 and 16,553.66 is: 22,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.66 : 39,542.46 = 16,553.66 : x
  2. Step 2: Convert to fraction form
    28,652.66/39,542.46 = 16,553.66/x
  3. Step 3: Cross multiply
    28,652.66x = 39,542.46 × 16,553.66
  4. Step 4: Simplify right side
    28,652.66x = 654,572,240.69
  5. Step 5: Solve for x
    x = 654,572,240.69/28,652.66
  6. Step 6: Final answer
    x = 22,845.08

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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.