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Finding the Fourth Proportional to 16,638.64, 24,937.84 and 7,274.64

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Solution

The fourth proportional to 16,638.64, 24,937.84 and 7,274.64 is: 10,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.64 : 24,937.84 = 7,274.64 : x
  2. Step 2: Convert to fraction form
    16,638.64/24,937.84 = 7,274.64/x
  3. Step 3: Cross multiply
    16,638.64x = 24,937.84 × 7,274.64
  4. Step 4: Simplify right side
    16,638.64x = 181,413,808.38
  5. Step 5: Solve for x
    x = 181,413,808.38/16,638.64
  6. Step 6: Final answer
    x = 10,903.16

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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.