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Finding the Fourth Proportional to 61,424.61, 84,765.67 and 34,567.57

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Solution

The fourth proportional to 61,424.61, 84,765.67 and 34,567.57 is: 47,703.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,424.61 : 84,765.67 = 34,567.57 : x
  2. Step 2: Convert to fraction form
    61,424.61/84,765.67 = 34,567.57/x
  3. Step 3: Cross multiply
    61,424.61x = 84,765.67 × 34,567.57
  4. Step 4: Simplify right side
    61,424.61x = 2,930,143,231.32
  5. Step 5: Solve for x
    x = 2,930,143,231.32/61,424.61
  6. Step 6: Final answer
    x = 47,703.08

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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.