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Finding the Fourth Proportional to 56,748.66, 84,885.93 and 39,880.44

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Solution

The fourth proportional to 56,748.66, 84,885.93 and 39,880.44 is: 59,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,748.66 : 84,885.93 = 39,880.44 : x
  2. Step 2: Convert to fraction form
    56,748.66/84,885.93 = 39,880.44/x
  3. Step 3: Cross multiply
    56,748.66x = 84,885.93 × 39,880.44
  4. Step 4: Simplify right side
    56,748.66x = 3,385,288,238.21
  5. Step 5: Solve for x
    x = 3,385,288,238.21/56,748.66
  6. Step 6: Final answer
    x = 59,654.06

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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.