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Finding the Fourth Proportional to 56,068.87, 84,103.31 and 38,485.39

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Solution

The fourth proportional to 56,068.87, 84,103.31 and 38,485.39 is: 57,728.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,068.87 : 84,103.31 = 38,485.39 : x
  2. Step 2: Convert to fraction form
    56,068.87/84,103.31 = 38,485.39/x
  3. Step 3: Cross multiply
    56,068.87x = 84,103.31 × 38,485.39
  4. Step 4: Simplify right side
    56,068.87x = 3,236,748,685.64
  5. Step 5: Solve for x
    x = 3,236,748,685.64/56,068.87
  6. Step 6: Final answer
    x = 57,728.09

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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.