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Finding the Fourth Proportional to 18,393.63, 27,587.81 and 5,912.01

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Solution

The fourth proportional to 18,393.63, 27,587.81 and 5,912.01 is: 8,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.63 : 27,587.81 = 5,912.01 : x
  2. Step 2: Convert to fraction form
    18,393.63/27,587.81 = 5,912.01/x
  3. Step 3: Cross multiply
    18,393.63x = 27,587.81 × 5,912.01
  4. Step 4: Simplify right side
    18,393.63x = 163,099,423.38
  5. Step 5: Solve for x
    x = 163,099,423.38/18,393.63
  6. Step 6: Final answer
    x = 8,867.17

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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.