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Finding the Fourth Proportional to 61,340.50, 92,010.60 and 19,223.80

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Solution

The fourth proportional to 61,340.50, 92,010.60 and 19,223.80 is: 28,835.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,340.50 : 92,010.60 = 19,223.80 : x
  2. Step 2: Convert to fraction form
    61,340.50/92,010.60 = 19,223.80/x
  3. Step 3: Cross multiply
    61,340.50x = 92,010.60 × 19,223.80
  4. Step 4: Simplify right side
    61,340.50x = 1,768,793,372.28
  5. Step 5: Solve for x
    x = 1,768,793,372.28/61,340.50
  6. Step 6: Final answer
    x = 28,835.65

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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.