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Finding the Fourth Proportional to 61,693.60, 85,136.64 and 33,399.04

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Solution

The fourth proportional to 61,693.60, 85,136.64 and 33,399.04 is: 46,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.60 : 85,136.64 = 33,399.04 : x
  2. Step 2: Convert to fraction form
    61,693.60/85,136.64 = 33,399.04/x
  3. Step 3: Cross multiply
    61,693.60x = 85,136.64 × 33,399.04
  4. Step 4: Simplify right side
    61,693.60x = 2,843,482,044.83
  5. Step 5: Solve for x
    x = 2,843,482,044.83/61,693.60
  6. Step 6: Final answer
    x = 46,090.39

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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.