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Finding the Fourth Proportional to 61,539.35, 84,923.12 and 34,681.32

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Solution

The fourth proportional to 61,539.35, 84,923.12 and 34,681.32 is: 47,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,539.35 : 84,923.12 = 34,681.32 : x
  2. Step 2: Convert to fraction form
    61,539.35/84,923.12 = 34,681.32/x
  3. Step 3: Cross multiply
    61,539.35x = 84,923.12 × 34,681.32
  4. Step 4: Simplify right side
    61,539.35x = 2,945,245,986.82
  5. Step 5: Solve for x
    x = 2,945,245,986.82/61,539.35
  6. Step 6: Final answer
    x = 47,859.55

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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.