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Finding the Fourth Proportional to 61,880.40, 85,395.03 and 33,586.09

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Solution

The fourth proportional to 61,880.40, 85,395.03 and 33,586.09 is: 46,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,880.40 : 85,395.03 = 33,586.09 : x
  2. Step 2: Convert to fraction form
    61,880.40/85,395.03 = 33,586.09/x
  3. Step 3: Cross multiply
    61,880.40x = 85,395.03 × 33,586.09
  4. Step 4: Simplify right side
    61,880.40x = 2,868,084,736.16
  5. Step 5: Solve for x
    x = 2,868,084,736.16/61,880.40
  6. Step 6: Final answer
    x = 46,348.84

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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.