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Finding the Fourth Proportional to 53,293.97, 79,911.58 and 21,695.94

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Solution

The fourth proportional to 53,293.97, 79,911.58 and 21,695.94 is: 32,531.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,293.97 : 79,911.58 = 21,695.94 : x
  2. Step 2: Convert to fraction form
    53,293.97/79,911.58 = 21,695.94/x
  3. Step 3: Cross multiply
    53,293.97x = 79,911.58 × 21,695.94
  4. Step 4: Simplify right side
    53,293.97x = 1,733,756,736.51
  5. Step 5: Solve for x
    x = 1,733,756,736.51/53,293.97
  6. Step 6: Final answer
    x = 32,531.95

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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.