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Finding the Fourth Proportional to 39,840.52, 59,746.86 and 11,753.12

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Solution

The fourth proportional to 39,840.52, 59,746.86 and 11,753.12 is: 17,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,840.52 : 59,746.86 = 11,753.12 : x
  2. Step 2: Convert to fraction form
    39,840.52/59,746.86 = 11,753.12/x
  3. Step 3: Cross multiply
    39,840.52x = 59,746.86 × 11,753.12
  4. Step 4: Simplify right side
    39,840.52x = 702,211,956.44
  5. Step 5: Solve for x
    x = 702,211,956.44/39,840.52
  6. Step 6: Final answer
    x = 17,625.57

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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.