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Finding the Fourth Proportional to 28,580.16, 39,442.02 and 17,249.46

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Solution

The fourth proportional to 28,580.16, 39,442.02 and 17,249.46 is: 23,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.16 : 39,442.02 = 17,249.46 : x
  2. Step 2: Convert to fraction form
    28,580.16/39,442.02 = 17,249.46/x
  3. Step 3: Cross multiply
    28,580.16x = 39,442.02 × 17,249.46
  4. Step 4: Simplify right side
    28,580.16x = 680,353,546.31
  5. Step 5: Solve for x
    x = 680,353,546.31/28,580.16
  6. Step 6: Final answer
    x = 23,805.10

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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.