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Finding the Fourth Proportional to 61,781.04, 85,257.09 and 33,486.39

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Solution

The fourth proportional to 61,781.04, 85,257.09 and 33,486.39 is: 46,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,781.04 : 85,257.09 = 33,486.39 : x
  2. Step 2: Convert to fraction form
    61,781.04/85,257.09 = 33,486.39/x
  3. Step 3: Cross multiply
    61,781.04x = 85,257.09 × 33,486.39
  4. Step 4: Simplify right side
    61,781.04x = 2,854,952,166.01
  5. Step 5: Solve for x
    x = 2,854,952,166.01/61,781.04
  6. Step 6: Final answer
    x = 46,210.81

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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.