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Finding the Fourth Proportional to 18,396.29, 27,598.08 and 7,308.20

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Solution

The fourth proportional to 18,396.29, 27,598.08 and 7,308.20 is: 10,963.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.29 : 27,598.08 = 7,308.20 : x
  2. Step 2: Convert to fraction form
    18,396.29/27,598.08 = 7,308.20/x
  3. Step 3: Cross multiply
    18,396.29x = 27,598.08 × 7,308.20
  4. Step 4: Simplify right side
    18,396.29x = 201,692,288.26
  5. Step 5: Solve for x
    x = 201,692,288.26/18,396.29
  6. Step 6: Final answer
    x = 10,963.75

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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.