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Finding the Fourth Proportional to 61,664.72, 92,499.66 and 19,543.88

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Solution

The fourth proportional to 61,664.72, 92,499.66 and 19,543.88 is: 29,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,664.72 : 92,499.66 = 19,543.88 : x
  2. Step 2: Convert to fraction form
    61,664.72/92,499.66 = 19,543.88/x
  3. Step 3: Cross multiply
    61,664.72x = 92,499.66 × 19,543.88
  4. Step 4: Simplify right side
    61,664.72x = 1,807,801,792.58
  5. Step 5: Solve for x
    x = 1,807,801,792.58/61,664.72
  6. Step 6: Final answer
    x = 29,316.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.