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Finding the Fourth Proportional to 40,893.70, 61,340.55 and 35,709.70

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Solution

The fourth proportional to 40,893.70, 61,340.55 and 35,709.70 is: 53,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,893.70 : 61,340.55 = 35,709.70 : x
  2. Step 2: Convert to fraction form
    40,893.70/61,340.55 = 35,709.70/x
  3. Step 3: Cross multiply
    40,893.70x = 61,340.55 × 35,709.70
  4. Step 4: Simplify right side
    40,893.70x = 2,190,452,638.34
  5. Step 5: Solve for x
    x = 2,190,452,638.34/40,893.70
  6. Step 6: Final answer
    x = 53,564.55

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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.