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Finding the Fourth Proportional to 61,648.91, 85,075.34 and 34,791.33

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Solution

The fourth proportional to 61,648.91, 85,075.34 and 34,791.33 is: 48,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,648.91 : 85,075.34 = 34,791.33 : x
  2. Step 2: Convert to fraction form
    61,648.91/85,075.34 = 34,791.33/x
  3. Step 3: Cross multiply
    61,648.91x = 85,075.34 × 34,791.33
  4. Step 4: Simplify right side
    61,648.91x = 2,959,884,228.80
  5. Step 5: Solve for x
    x = 2,959,884,228.80/61,648.91
  6. Step 6: Final answer
    x = 48,011.95

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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.