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Finding the Fourth Proportional to 18,549.66, 27,831.33 and 8,692.14

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Solution

The fourth proportional to 18,549.66, 27,831.33 and 8,692.14 is: 13,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.66 : 27,831.33 = 8,692.14 : x
  2. Step 2: Convert to fraction form
    18,549.66/27,831.33 = 8,692.14/x
  3. Step 3: Cross multiply
    18,549.66x = 27,831.33 × 8,692.14
  4. Step 4: Simplify right side
    18,549.66x = 241,913,816.75
  5. Step 5: Solve for x
    x = 241,913,816.75/18,549.66
  6. Step 6: Final answer
    x = 13,041.42

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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.