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Finding the Fourth Proportional to 16,805.16, 25,213.44 and 7,443.92

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Solution

The fourth proportional to 16,805.16, 25,213.44 and 7,443.92 is: 11,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.16 : 25,213.44 = 7,443.92 : x
  2. Step 2: Convert to fraction form
    16,805.16/25,213.44 = 7,443.92/x
  3. Step 3: Cross multiply
    16,805.16x = 25,213.44 × 7,443.92
  4. Step 4: Simplify right side
    16,805.16x = 187,686,830.28
  5. Step 5: Solve for x
    x = 187,686,830.28/16,805.16
  6. Step 6: Final answer
    x = 11,168.40

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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.