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Finding the Fourth Proportional to 13,049.64, 18,008.49 and 7,460.64

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Solution

The fourth proportional to 13,049.64, 18,008.49 and 7,460.64 is: 10,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.64 : 18,008.49 = 7,460.64 : x
  2. Step 2: Convert to fraction form
    13,049.64/18,008.49 = 7,460.64/x
  3. Step 3: Cross multiply
    13,049.64x = 18,008.49 × 7,460.64
  4. Step 4: Simplify right side
    13,049.64x = 134,354,860.83
  5. Step 5: Solve for x
    x = 134,354,860.83/13,049.64
  6. Step 6: Final answer
    x = 10,295.68

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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.