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Finding the Fourth Proportional to 18,729.65, 28,094.28 and 10,827.14

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Solution

The fourth proportional to 18,729.65, 28,094.28 and 10,827.14 is: 16,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.65 : 28,094.28 = 10,827.14 : x
  2. Step 2: Convert to fraction form
    18,729.65/28,094.28 = 10,827.14/x
  3. Step 3: Cross multiply
    18,729.65x = 28,094.28 × 10,827.14
  4. Step 4: Simplify right side
    18,729.65x = 304,180,632.52
  5. Step 5: Solve for x
    x = 304,180,632.52/18,729.65
  6. Step 6: Final answer
    x = 16,240.59

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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.