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Finding the Fourth Proportional to 64,511.70, 96,767.55 and 40,892.10

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Solution

The fourth proportional to 64,511.70, 96,767.55 and 40,892.10 is: 61,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,511.70 : 96,767.55 = 40,892.10 : x
  2. Step 2: Convert to fraction form
    64,511.70/96,767.55 = 40,892.10/x
  3. Step 3: Cross multiply
    64,511.70x = 96,767.55 × 40,892.10
  4. Step 4: Simplify right side
    64,511.70x = 3,957,028,331.36
  5. Step 5: Solve for x
    x = 3,957,028,331.36/64,511.70
  6. Step 6: Final answer
    x = 61,338.15

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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.