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Finding the Fourth Proportional to 61,889.79, 85,405.46 and 35,037.87

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Solution

The fourth proportional to 61,889.79, 85,405.46 and 35,037.87 is: 48,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,889.79 : 85,405.46 = 35,037.87 : x
  2. Step 2: Convert to fraction form
    61,889.79/85,405.46 = 35,037.87/x
  3. Step 3: Cross multiply
    61,889.79x = 85,405.46 × 35,037.87
  4. Step 4: Simplify right side
    61,889.79x = 2,992,425,389.72
  5. Step 5: Solve for x
    x = 2,992,425,389.72/61,889.79
  6. Step 6: Final answer
    x = 48,350.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.