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Finding the Fourth Proportional to 18,612.45, 27,923.89 and 7,526.93

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Solution

The fourth proportional to 18,612.45, 27,923.89 and 7,526.93 is: 11,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.45 : 27,923.89 = 7,526.93 : x
  2. Step 2: Convert to fraction form
    18,612.45/27,923.89 = 7,526.93/x
  3. Step 3: Cross multiply
    18,612.45x = 27,923.89 × 7,526.93
  4. Step 4: Simplify right side
    18,612.45x = 210,181,035.15
  5. Step 5: Solve for x
    x = 210,181,035.15/18,612.45
  6. Step 6: Final answer
    x = 11,292.49

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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.