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Finding the Fourth Proportional to 35,479.72, 48,961.72 and 19,564.84

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Solution

The fourth proportional to 35,479.72, 48,961.72 and 19,564.84 is: 26,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.72 : 48,961.72 = 19,564.84 : x
  2. Step 2: Convert to fraction form
    35,479.72/48,961.72 = 19,564.84/x
  3. Step 3: Cross multiply
    35,479.72x = 48,961.72 × 19,564.84
  4. Step 4: Simplify right side
    35,479.72x = 957,928,217.92
  5. Step 5: Solve for x
    x = 957,928,217.92/35,479.72
  6. Step 6: Final answer
    x = 26,999.32

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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.