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Finding the Fourth Proportional to 61,360.72, 92,030.82 and 16,991.96

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Solution

The fourth proportional to 61,360.72, 92,030.82 and 16,991.96 is: 25,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,360.72 : 92,030.82 = 16,991.96 : x
  2. Step 2: Convert to fraction form
    61,360.72/92,030.82 = 16,991.96/x
  3. Step 3: Cross multiply
    61,360.72x = 92,030.82 × 16,991.96
  4. Step 4: Simplify right side
    61,360.72x = 1,563,784,012.21
  5. Step 5: Solve for x
    x = 1,563,784,012.21/61,360.72
  6. Step 6: Final answer
    x = 25,485.10

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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.