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Finding the Fourth Proportional to 60,942.66, 91,427.64 and 21,500.10

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Solution

The fourth proportional to 60,942.66, 91,427.64 and 21,500.10 is: 32,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,942.66 : 91,427.64 = 21,500.10 : x
  2. Step 2: Convert to fraction form
    60,942.66/91,427.64 = 21,500.10/x
  3. Step 3: Cross multiply
    60,942.66x = 91,427.64 × 21,500.10
  4. Step 4: Simplify right side
    60,942.66x = 1,965,703,402.76
  5. Step 5: Solve for x
    x = 1,965,703,402.76/60,942.66
  6. Step 6: Final answer
    x = 32,254.97

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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.