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Finding the Fourth Proportional to 61,075.49, 91,717.25 and 39,764.48

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Solution

The fourth proportional to 61,075.49, 91,717.25 and 39,764.48 is: 59,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,075.49 : 91,717.25 = 39,764.48 : x
  2. Step 2: Convert to fraction form
    61,075.49/91,717.25 = 39,764.48/x
  3. Step 3: Cross multiply
    61,075.49x = 91,717.25 × 39,764.48
  4. Step 4: Simplify right side
    61,075.49x = 3,647,088,095.87
  5. Step 5: Solve for x
    x = 3,647,088,095.87/61,075.49
  6. Step 6: Final answer
    x = 59,714.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.