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Finding the Fourth Proportional to 61,956.26, 92,945.34 and 21,987.48

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Solution

The fourth proportional to 61,956.26, 92,945.34 and 21,987.48 is: 32,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,956.26 : 92,945.34 = 21,987.48 : x
  2. Step 2: Convert to fraction form
    61,956.26/92,945.34 = 21,987.48/x
  3. Step 3: Cross multiply
    61,956.26x = 92,945.34 × 21,987.48
  4. Step 4: Simplify right side
    61,956.26x = 2,043,634,152.89
  5. Step 5: Solve for x
    x = 2,043,634,152.89/61,956.26
  6. Step 6: Final answer
    x = 32,985.11

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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.