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Finding the Fourth Proportional to 62,987.25, 86,922.40 and 34,692.93

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Solution

The fourth proportional to 62,987.25, 86,922.40 and 34,692.93 is: 47,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,987.25 : 86,922.40 = 34,692.93 : x
  2. Step 2: Convert to fraction form
    62,987.25/86,922.40 = 34,692.93/x
  3. Step 3: Cross multiply
    62,987.25x = 86,922.40 × 34,692.93
  4. Step 4: Simplify right side
    62,987.25x = 3,015,592,912.81
  5. Step 5: Solve for x
    x = 3,015,592,912.81/62,987.25
  6. Step 6: Final answer
    x = 47,876.25

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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.