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Finding the Fourth Proportional to 53,605.76, 80,411.78 and 18,064.11

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Solution

The fourth proportional to 53,605.76, 80,411.78 and 18,064.11 is: 27,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,605.76 : 80,411.78 = 18,064.11 : x
  2. Step 2: Convert to fraction form
    53,605.76/80,411.78 = 18,064.11/x
  3. Step 3: Cross multiply
    53,605.76x = 80,411.78 × 18,064.11
  4. Step 4: Simplify right side
    53,605.76x = 1,452,567,239.22
  5. Step 5: Solve for x
    x = 1,452,567,239.22/53,605.76
  6. Step 6: Final answer
    x = 27,097.22

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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.