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Finding the Fourth Proportional to 16,729.28, 25,088.64 and 8,934.08

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Solution

The fourth proportional to 16,729.28, 25,088.64 and 8,934.08 is: 13,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,729.28 : 25,088.64 = 8,934.08 : x
  2. Step 2: Convert to fraction form
    16,729.28/25,088.64 = 8,934.08/x
  3. Step 3: Cross multiply
    16,729.28x = 25,088.64 × 8,934.08
  4. Step 4: Simplify right side
    16,729.28x = 224,143,916.85
  5. Step 5: Solve for x
    x = 224,143,916.85/16,729.28
  6. Step 6: Final answer
    x = 13,398.30

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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.