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Finding the Fourth Proportional to 33,145.50, 49,718.28 and 8,521.50

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Solution

The fourth proportional to 33,145.50, 49,718.28 and 8,521.50 is: 12,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,145.50 : 49,718.28 = 8,521.50 : x
  2. Step 2: Convert to fraction form
    33,145.50/49,718.28 = 8,521.50/x
  3. Step 3: Cross multiply
    33,145.50x = 49,718.28 × 8,521.50
  4. Step 4: Simplify right side
    33,145.50x = 423,674,323.02
  5. Step 5: Solve for x
    x = 423,674,323.02/33,145.50
  6. Step 6: Final answer
    x = 12,782.26

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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.