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Finding the Fourth Proportional to 34,718.56, 51,975.44 and 21,528.48

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Solution

The fourth proportional to 34,718.56, 51,975.44 and 21,528.48 is: 32,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,718.56 : 51,975.44 = 21,528.48 : x
  2. Step 2: Convert to fraction form
    34,718.56/51,975.44 = 21,528.48/x
  3. Step 3: Cross multiply
    34,718.56x = 51,975.44 × 21,528.48
  4. Step 4: Simplify right side
    34,718.56x = 1,118,952,220.53
  5. Step 5: Solve for x
    x = 1,118,952,220.53/34,718.56
  6. Step 6: Final answer
    x = 32,229.22

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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.