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Finding the Fourth Proportional to 61,361.64, 92,032.20 and 16,992.88

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Solution

The fourth proportional to 61,361.64, 92,032.20 and 16,992.88 is: 25,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,361.64 : 92,032.20 = 16,992.88 : x
  2. Step 2: Convert to fraction form
    61,361.64/92,032.20 = 16,992.88/x
  3. Step 3: Cross multiply
    61,361.64x = 92,032.20 × 16,992.88
  4. Step 4: Simplify right side
    61,361.64x = 1,563,892,130.74
  5. Step 5: Solve for x
    x = 1,563,892,130.74/61,361.64
  6. Step 6: Final answer
    x = 25,486.48

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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.