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Finding the Fourth Proportional to 61,933.51, 85,469.21 and 33,639.18

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Solution

The fourth proportional to 61,933.51, 85,469.21 and 33,639.18 is: 46,422.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,933.51 : 85,469.21 = 33,639.18 : x
  2. Step 2: Convert to fraction form
    61,933.51/85,469.21 = 33,639.18/x
  3. Step 3: Cross multiply
    61,933.51x = 85,469.21 × 33,639.18
  4. Step 4: Simplify right side
    61,933.51x = 2,875,114,139.65
  5. Step 5: Solve for x
    x = 2,875,114,139.65/61,933.51
  6. Step 6: Final answer
    x = 46,422.59

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1.5x scale

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.