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Finding the Fourth Proportional to 15,935.38, 23,900.36 and 4,839.40

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Solution

The fourth proportional to 15,935.38, 23,900.36 and 4,839.40 is: 7,258.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.38 : 23,900.36 = 4,839.40 : x
  2. Step 2: Convert to fraction form
    15,935.38/23,900.36 = 4,839.40/x
  3. Step 3: Cross multiply
    15,935.38x = 23,900.36 × 4,839.40
  4. Step 4: Simplify right side
    15,935.38x = 115,663,402.18
  5. Step 5: Solve for x
    x = 115,663,402.18/15,935.38
  6. Step 6: Final answer
    x = 7,258.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.