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Finding the Fourth Proportional to 62,611.84, 93,919.26 and 21,058.84

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Solution

The fourth proportional to 62,611.84, 93,919.26 and 21,058.84 is: 31,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,611.84 : 93,919.26 = 21,058.84 : x
  2. Step 2: Convert to fraction form
    62,611.84/93,919.26 = 21,058.84/x
  3. Step 3: Cross multiply
    62,611.84x = 93,919.26 × 21,058.84
  4. Step 4: Simplify right side
    62,611.84x = 1,977,830,669.26
  5. Step 5: Solve for x
    x = 1,977,830,669.26/62,611.84
  6. Step 6: Final answer
    x = 31,588.76

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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.