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Finding the Fourth Proportional to 61,237.76, 84,507.38 and 34,379.60

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Solution

The fourth proportional to 61,237.76, 84,507.38 and 34,379.60 is: 47,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,237.76 : 84,507.38 = 34,379.60 : x
  2. Step 2: Convert to fraction form
    61,237.76/84,507.38 = 34,379.60/x
  3. Step 3: Cross multiply
    61,237.76x = 84,507.38 × 34,379.60
  4. Step 4: Simplify right side
    61,237.76x = 2,905,329,921.45
  5. Step 5: Solve for x
    x = 2,905,329,921.45/61,237.76
  6. Step 6: Final answer
    x = 47,443.44

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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.