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Finding the Fourth Proportional to 61,776, 85,250.40 and 33,480.96

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Solution

The fourth proportional to 61,776, 85,250.40 and 33,480.96 is: 46,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,776 : 85,250.40 = 33,480.96 : x
  2. Step 2: Convert to fraction form
    61,776/85,250.40 = 33,480.96/x
  3. Step 3: Cross multiply
    61,776x = 85,250.40 × 33,480.96
  4. Step 4: Simplify right side
    61,776x = 2,854,265,232.38
  5. Step 5: Solve for x
    x = 2,854,265,232.38/61,776
  6. Step 6: Final answer
    x = 46,203.46

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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.