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Finding the Fourth Proportional to 61,709.41, 92,494.12 and 28,360.55

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Solution

The fourth proportional to 61,709.41, 92,494.12 and 28,360.55 is: 42,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,709.41 : 92,494.12 = 28,360.55 : x
  2. Step 2: Convert to fraction form
    61,709.41/92,494.12 = 28,360.55/x
  3. Step 3: Cross multiply
    61,709.41x = 92,494.12 × 28,360.55
  4. Step 4: Simplify right side
    61,709.41x = 2,623,183,808.20
  5. Step 5: Solve for x
    x = 2,623,183,808.20/61,709.41
  6. Step 6: Final answer
    x = 42,508.65

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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.