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Finding the Fourth Proportional to 55,168, 82,776.30 and 18,232

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Solution

The fourth proportional to 55,168, 82,776.30 and 18,232 is: 27,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,168 : 82,776.30 = 18,232 : x
  2. Step 2: Convert to fraction form
    55,168/82,776.30 = 18,232/x
  3. Step 3: Cross multiply
    55,168x = 82,776.30 × 18,232
  4. Step 4: Simplify right side
    55,168x = 1,509,177,501.60
  5. Step 5: Solve for x
    x = 1,509,177,501.60/55,168
  6. Step 6: Final answer
    x = 27,356.03

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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.