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Finding the Fourth Proportional to 58,750.79, 81,075.89 and 31,893.11

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Solution

The fourth proportional to 58,750.79, 81,075.89 and 31,893.11 is: 44,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,750.79 : 81,075.89 = 31,893.11 : x
  2. Step 2: Convert to fraction form
    58,750.79/81,075.89 = 31,893.11/x
  3. Step 3: Cross multiply
    58,750.79x = 81,075.89 × 31,893.11
  4. Step 4: Simplify right side
    58,750.79x = 2,585,761,713.27
  5. Step 5: Solve for x
    x = 2,585,761,713.27/58,750.79
  6. Step 6: Final answer
    x = 44,012.38

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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.