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Finding the Fourth Proportional to 61,347.32, 92,020.82 and 19,230.60

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Solution

The fourth proportional to 61,347.32, 92,020.82 and 19,230.60 is: 28,845.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,347.32 : 92,020.82 = 19,230.60 : x
  2. Step 2: Convert to fraction form
    61,347.32/92,020.82 = 19,230.60/x
  3. Step 3: Cross multiply
    61,347.32x = 92,020.82 × 19,230.60
  4. Step 4: Simplify right side
    61,347.32x = 1,769,615,484.94
  5. Step 5: Solve for x
    x = 1,769,615,484.94/61,347.32
  6. Step 6: Final answer
    x = 28,845.85

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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.