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Finding the Fourth Proportional to 60,465.99, 90,694.13 and 21,017.37

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Solution

The fourth proportional to 60,465.99, 90,694.13 and 21,017.37 is: 31,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,465.99 : 90,694.13 = 21,017.37 : x
  2. Step 2: Convert to fraction form
    60,465.99/90,694.13 = 21,017.37/x
  3. Step 3: Cross multiply
    60,465.99x = 90,694.13 × 21,017.37
  4. Step 4: Simplify right side
    60,465.99x = 1,906,152,440.28
  5. Step 5: Solve for x
    x = 1,906,152,440.28/60,465.99
  6. Step 6: Final answer
    x = 31,524.37

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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.