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Finding the Fourth Proportional to 47,809.53, 71,713.71 and 21,495.69

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Solution

The fourth proportional to 47,809.53, 71,713.71 and 21,495.69 is: 32,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,809.53 : 71,713.71 = 21,495.69 : x
  2. Step 2: Convert to fraction form
    47,809.53/71,713.71 = 21,495.69/x
  3. Step 3: Cross multiply
    47,809.53x = 71,713.71 × 21,495.69
  4. Step 4: Simplify right side
    47,809.53x = 1,541,535,678.91
  5. Step 5: Solve for x
    x = 1,541,535,678.91/47,809.53
  6. Step 6: Final answer
    x = 32,243.27

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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.