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Finding the Fourth Proportional to 23,258.50, 35,042.85 and 21,039.91

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Solution

The fourth proportional to 23,258.50, 35,042.85 and 21,039.91 is: 31,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,258.50 : 35,042.85 = 21,039.91 : x
  2. Step 2: Convert to fraction form
    23,258.50/35,042.85 = 21,039.91/x
  3. Step 3: Cross multiply
    23,258.50x = 35,042.85 × 21,039.91
  4. Step 4: Simplify right side
    23,258.50x = 737,298,410.14
  5. Step 5: Solve for x
    x = 737,298,410.14/23,258.50
  6. Step 6: Final answer
    x = 31,700.17

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.