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Finding the Fourth Proportional to 18,612.27, 27,923.61 and 7,526.74

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Solution

The fourth proportional to 18,612.27, 27,923.61 and 7,526.74 is: 11,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.27 : 27,923.61 = 7,526.74 : x
  2. Step 2: Convert to fraction form
    18,612.27/27,923.61 = 7,526.74/x
  3. Step 3: Cross multiply
    18,612.27x = 27,923.61 × 7,526.74
  4. Step 4: Simplify right side
    18,612.27x = 210,173,682.52
  5. Step 5: Solve for x
    x = 210,173,682.52/18,612.27
  6. Step 6: Final answer
    x = 11,292.21

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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.