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Finding the Fourth Proportional to 28,398.54, 39,177.66 and 16,907.02

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Solution

The fourth proportional to 28,398.54, 39,177.66 and 16,907.02 is: 23,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.54 : 39,177.66 = 16,907.02 : x
  2. Step 2: Convert to fraction form
    28,398.54/39,177.66 = 16,907.02/x
  3. Step 3: Cross multiply
    28,398.54x = 39,177.66 × 16,907.02
  4. Step 4: Simplify right side
    28,398.54x = 662,377,305.46
  5. Step 5: Solve for x
    x = 662,377,305.46/28,398.54
  6. Step 6: Final answer
    x = 23,324.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.