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Finding the Fourth Proportional to 61,398.28, 91,941.90 and 37,953.64

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Solution

The fourth proportional to 61,398.28, 91,941.90 and 37,953.64 is: 56,834.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.28 : 91,941.90 = 37,953.64 : x
  2. Step 2: Convert to fraction form
    61,398.28/91,941.90 = 37,953.64/x
  3. Step 3: Cross multiply
    61,398.28x = 91,941.90 × 37,953.64
  4. Step 4: Simplify right side
    61,398.28x = 3,489,529,773.52
  5. Step 5: Solve for x
    x = 3,489,529,773.52/61,398.28
  6. Step 6: Final answer
    x = 56,834.32

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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.