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Finding the Fourth Proportional to 61,365.15, 92,061.44 and 21,385.98

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Solution

The fourth proportional to 61,365.15, 92,061.44 and 21,385.98 is: 32,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.15 : 92,061.44 = 21,385.98 : x
  2. Step 2: Convert to fraction form
    61,365.15/92,061.44 = 21,385.98/x
  3. Step 3: Cross multiply
    61,365.15x = 92,061.44 × 21,385.98
  4. Step 4: Simplify right side
    61,365.15x = 1,968,824,114.61
  5. Step 5: Solve for x
    x = 1,968,824,114.61/61,365.15
  6. Step 6: Final answer
    x = 32,083.75

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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.