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Finding the Fourth Proportional to 35,358.94, 48,795.21 and 21,028.62

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Solution

The fourth proportional to 35,358.94, 48,795.21 and 21,028.62 is: 29,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,358.94 : 48,795.21 = 21,028.62 : x
  2. Step 2: Convert to fraction form
    35,358.94/48,795.21 = 21,028.62/x
  3. Step 3: Cross multiply
    35,358.94x = 48,795.21 × 21,028.62
  4. Step 4: Simplify right side
    35,358.94x = 1,026,095,928.91
  5. Step 5: Solve for x
    x = 1,026,095,928.91/35,358.94
  6. Step 6: Final answer
    x = 29,019.42

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Why These Related Problems?

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