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Finding the Fourth Proportional to 61,219.26, 91,818.12 and 16,835.32

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Solution

The fourth proportional to 61,219.26, 91,818.12 and 16,835.32 is: 25,250.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,219.26 : 91,818.12 = 16,835.32 : x
  2. Step 2: Convert to fraction form
    61,219.26/91,818.12 = 16,835.32/x
  3. Step 3: Cross multiply
    61,219.26x = 91,818.12 × 16,835.32
  4. Step 4: Simplify right side
    61,219.26x = 1,545,787,432.00
  5. Step 5: Solve for x
    x = 1,545,787,432.00/61,219.26
  6. Step 6: Final answer
    x = 25,250.02

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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.