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Finding the Fourth Proportional to 61,484.70, 92,237.55 and 28,207.61

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Solution

The fourth proportional to 61,484.70, 92,237.55 and 28,207.61 is: 42,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,484.70 : 92,237.55 = 28,207.61 : x
  2. Step 2: Convert to fraction form
    61,484.70/92,237.55 = 28,207.61/x
  3. Step 3: Cross multiply
    61,484.70x = 92,237.55 × 28,207.61
  4. Step 4: Simplify right side
    61,484.70x = 2,601,800,837.76
  5. Step 5: Solve for x
    x = 2,601,800,837.76/61,484.70
  6. Step 6: Final answer
    x = 42,316.23

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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.