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Finding the Fourth Proportional to 61,748.34, 85,216.64 and 37,871.76

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Solution

The fourth proportional to 61,748.34, 85,216.64 and 37,871.76 is: 52,265.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,748.34 : 85,216.64 = 37,871.76 : x
  2. Step 2: Convert to fraction form
    61,748.34/85,216.64 = 37,871.76/x
  3. Step 3: Cross multiply
    61,748.34x = 85,216.64 × 37,871.76
  4. Step 4: Simplify right side
    61,748.34x = 3,227,303,948.73
  5. Step 5: Solve for x
    x = 3,227,303,948.73/61,748.34
  6. Step 6: Final answer
    x = 52,265.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.