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Finding the Fourth Proportional to 61,407.80, 92,160.30 and 23,985.80

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Solution

The fourth proportional to 61,407.80, 92,160.30 and 23,985.80 is: 35,997.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,407.80 : 92,160.30 = 23,985.80 : x
  2. Step 2: Convert to fraction form
    61,407.80/92,160.30 = 23,985.80/x
  3. Step 3: Cross multiply
    61,407.80x = 92,160.30 × 23,985.80
  4. Step 4: Simplify right side
    61,407.80x = 2,210,538,523.74
  5. Step 5: Solve for x
    x = 2,210,538,523.74/61,407.80
  6. Step 6: Final answer
    x = 35,997.68

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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.