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Finding the Fourth Proportional to 55,880.99, 83,824.37 and 18,443.97

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Solution

The fourth proportional to 55,880.99, 83,824.37 and 18,443.97 is: 27,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880.99 : 83,824.37 = 18,443.97 : x
  2. Step 2: Convert to fraction form
    55,880.99/83,824.37 = 18,443.97/x
  3. Step 3: Cross multiply
    55,880.99x = 83,824.37 × 18,443.97
  4. Step 4: Simplify right side
    55,880.99x = 1,546,054,142.49
  5. Step 5: Solve for x
    x = 1,546,054,142.49/55,880.99
  6. Step 6: Final answer
    x = 27,666.91

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1.5x scale

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.