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Finding the Fourth Proportional to 61,752.78, 85,218.62 and 33,458.54

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Solution

The fourth proportional to 61,752.78, 85,218.62 and 33,458.54 is: 46,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,752.78 : 85,218.62 = 33,458.54 : x
  2. Step 2: Convert to fraction form
    61,752.78/85,218.62 = 33,458.54/x
  3. Step 3: Cross multiply
    61,752.78x = 85,218.62 × 33,458.54
  4. Step 4: Simplify right side
    61,752.78x = 2,851,290,012.63
  5. Step 5: Solve for x
    x = 2,851,290,012.63/61,752.78
  6. Step 6: Final answer
    x = 46,172.66

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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.