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Finding the Fourth Proportional to 39,543, 59,314.50 and 11,841

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Solution

The fourth proportional to 39,543, 59,314.50 and 11,841 is: 17,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,543 : 59,314.50 = 11,841 : x
  2. Step 2: Convert to fraction form
    39,543/59,314.50 = 11,841/x
  3. Step 3: Cross multiply
    39,543x = 59,314.50 × 11,841
  4. Step 4: Simplify right side
    39,543x = 702,342,994.50
  5. Step 5: Solve for x
    x = 702,342,994.50/39,543
  6. Step 6: Final answer
    x = 17,761.50

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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.