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Finding the Fourth Proportional to 61,985.80, 92,982.30 and 17,615.80

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Solution

The fourth proportional to 61,985.80, 92,982.30 and 17,615.80 is: 26,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,985.80 : 92,982.30 = 17,615.80 : x
  2. Step 2: Convert to fraction form
    61,985.80/92,982.30 = 17,615.80/x
  3. Step 3: Cross multiply
    61,985.80x = 92,982.30 × 17,615.80
  4. Step 4: Simplify right side
    61,985.80x = 1,637,957,600.34
  5. Step 5: Solve for x
    x = 1,637,957,600.34/61,985.80
  6. Step 6: Final answer
    x = 26,424.72

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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.