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Finding the Fourth Proportional to 35,394.78, 48,842.28 and 21,053.82

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Solution

The fourth proportional to 35,394.78, 48,842.28 and 21,053.82 is: 29,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,394.78 : 48,842.28 = 21,053.82 : x
  2. Step 2: Convert to fraction form
    35,394.78/48,842.28 = 21,053.82/x
  3. Step 3: Cross multiply
    35,394.78x = 48,842.28 × 21,053.82
  4. Step 4: Simplify right side
    35,394.78x = 1,028,316,571.51
  5. Step 5: Solve for x
    x = 1,028,316,571.51/35,394.78
  6. Step 6: Final answer
    x = 29,052.77

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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.