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Finding the Fourth Proportional to 18,316.64, 27,491.16 and 10,004.24

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Solution

The fourth proportional to 18,316.64, 27,491.16 and 10,004.24 is: 15,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,316.64 : 27,491.16 = 10,004.24 : x
  2. Step 2: Convert to fraction form
    18,316.64/27,491.16 = 10,004.24/x
  3. Step 3: Cross multiply
    18,316.64x = 27,491.16 × 10,004.24
  4. Step 4: Simplify right side
    18,316.64x = 275,028,162.52
  5. Step 5: Solve for x
    x = 275,028,162.52/18,316.64
  6. Step 6: Final answer
    x = 15,015.21

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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.