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Finding the Fourth Proportional to 61,274.53, 91,919.22 and 21,835.63

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Solution

The fourth proportional to 61,274.53, 91,919.22 and 21,835.63 is: 32,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,274.53 : 91,919.22 = 21,835.63 : x
  2. Step 2: Convert to fraction form
    61,274.53/91,919.22 = 21,835.63/x
  3. Step 3: Cross multiply
    61,274.53x = 91,919.22 × 21,835.63
  4. Step 4: Simplify right side
    61,274.53x = 2,007,114,077.81
  5. Step 5: Solve for x
    x = 2,007,114,077.81/61,274.53
  6. Step 6: Final answer
    x = 32,756.09

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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.