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Finding the Fourth Proportional to 16,899.40, 25,370.70 and 9,008.20

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Solution

The fourth proportional to 16,899.40, 25,370.70 and 9,008.20 is: 13,523.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.40 : 25,370.70 = 9,008.20 : x
  2. Step 2: Convert to fraction form
    16,899.40/25,370.70 = 9,008.20/x
  3. Step 3: Cross multiply
    16,899.40x = 25,370.70 × 9,008.20
  4. Step 4: Simplify right side
    16,899.40x = 228,544,339.74
  5. Step 5: Solve for x
    x = 228,544,339.74/16,899.40
  6. Step 6: Final answer
    x = 13,523.81

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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.