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Finding the Fourth Proportional to 61,663.10, 85,095.29 and 33,368.78

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Solution

The fourth proportional to 61,663.10, 85,095.29 and 33,368.78 is: 46,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,663.10 : 85,095.29 = 33,368.78 : x
  2. Step 2: Convert to fraction form
    61,663.10/85,095.29 = 33,368.78/x
  3. Step 3: Cross multiply
    61,663.10x = 85,095.29 × 33,368.78
  4. Step 4: Simplify right side
    61,663.10x = 2,839,525,418.73
  5. Step 5: Solve for x
    x = 2,839,525,418.73/61,663.10
  6. Step 6: Final answer
    x = 46,049.03

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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.