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Finding the Fourth Proportional to 18,587.99, 27,893.34 and 8,055.97

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Solution

The fourth proportional to 18,587.99, 27,893.34 and 8,055.97 is: 12,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.99 : 27,893.34 = 8,055.97 : x
  2. Step 2: Convert to fraction form
    18,587.99/27,893.34 = 8,055.97/x
  3. Step 3: Cross multiply
    18,587.99x = 27,893.34 × 8,055.97
  4. Step 4: Simplify right side
    18,587.99x = 224,707,840.51
  5. Step 5: Solve for x
    x = 224,707,840.51/18,587.99
  6. Step 6: Final answer
    x = 12,088.87

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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.