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Finding the Fourth Proportional to 16,933.20, 25,378.20 and 13,018.20

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Solution

The fourth proportional to 16,933.20, 25,378.20 and 13,018.20 is: 19,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,933.20 : 25,378.20 = 13,018.20 : x
  2. Step 2: Convert to fraction form
    16,933.20/25,378.20 = 13,018.20/x
  3. Step 3: Cross multiply
    16,933.20x = 25,378.20 × 13,018.20
  4. Step 4: Simplify right side
    16,933.20x = 330,378,483.24
  5. Step 5: Solve for x
    x = 330,378,483.24/16,933.20
  6. Step 6: Final answer
    x = 19,510.69

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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.