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Finding the Fourth Proportional to 61,918.98, 85,445.91 and 33,624.06

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Solution

The fourth proportional to 61,918.98, 85,445.91 and 33,624.06 is: 46,399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,918.98 : 85,445.91 = 33,624.06 : x
  2. Step 2: Convert to fraction form
    61,918.98/85,445.91 = 33,624.06/x
  3. Step 3: Cross multiply
    61,918.98x = 85,445.91 × 33,624.06
  4. Step 4: Simplify right side
    61,918.98x = 2,873,038,404.59
  5. Step 5: Solve for x
    x = 2,873,038,404.59/61,918.98
  6. Step 6: Final answer
    x = 46,399.96

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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.