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Finding the Fourth Proportional to 16,639.64, 24,939.34 and 7,275.64

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Solution

The fourth proportional to 16,639.64, 24,939.34 and 7,275.64 is: 10,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,639.64 : 24,939.34 = 7,275.64 : x
  2. Step 2: Convert to fraction form
    16,639.64/24,939.34 = 7,275.64/x
  3. Step 3: Cross multiply
    16,639.64x = 24,939.34 × 7,275.64
  4. Step 4: Simplify right side
    16,639.64x = 181,449,659.68
  5. Step 5: Solve for x
    x = 181,449,659.68/16,639.64
  6. Step 6: Final answer
    x = 10,904.66

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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.