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Finding the Fourth Proportional to 53,861, 80,792.94 and 18,322.25

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Solution

The fourth proportional to 53,861, 80,792.94 and 18,322.25 is: 27,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,861 : 80,792.94 = 18,322.25 : x
  2. Step 2: Convert to fraction form
    53,861/80,792.94 = 18,322.25/x
  3. Step 3: Cross multiply
    53,861x = 80,792.94 × 18,322.25
  4. Step 4: Simplify right side
    53,861x = 1,480,308,444.92
  5. Step 5: Solve for x
    x = 1,480,308,444.92/53,861
  6. Step 6: Final answer
    x = 27,483.86

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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.