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Finding the Fourth Proportional to 12,040.64, 16,617.90 and 7,324.01

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Solution

The fourth proportional to 12,040.64, 16,617.90 and 7,324.01 is: 10,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.64 : 16,617.90 = 7,324.01 : x
  2. Step 2: Convert to fraction form
    12,040.64/16,617.90 = 7,324.01/x
  3. Step 3: Cross multiply
    12,040.64x = 16,617.90 × 7,324.01
  4. Step 4: Simplify right side
    12,040.64x = 121,709,665.78
  5. Step 5: Solve for x
    x = 121,709,665.78/12,040.64
  6. Step 6: Final answer
    x = 10,108.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.