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Finding the Fourth Proportional to 61,868.99, 85,379.43 and 33,574.67

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Solution

The fourth proportional to 61,868.99, 85,379.43 and 33,574.67 is: 46,333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,868.99 : 85,379.43 = 33,574.67 : x
  2. Step 2: Convert to fraction form
    61,868.99/85,379.43 = 33,574.67/x
  3. Step 3: Cross multiply
    61,868.99x = 85,379.43 × 33,574.67
  4. Step 4: Simplify right side
    61,868.99x = 2,866,586,187.04
  5. Step 5: Solve for x
    x = 2,866,586,187.04/61,868.99
  6. Step 6: Final answer
    x = 46,333.17

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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.