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Finding the Fourth Proportional to 16,867.20, 25,297.20 and 7,507.20

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Solution

The fourth proportional to 16,867.20, 25,297.20 and 7,507.20 is: 11,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,867.20 : 25,297.20 = 7,507.20 : x
  2. Step 2: Convert to fraction form
    16,867.20/25,297.20 = 7,507.20/x
  3. Step 3: Cross multiply
    16,867.20x = 25,297.20 × 7,507.20
  4. Step 4: Simplify right side
    16,867.20x = 189,911,139.84
  5. Step 5: Solve for x
    x = 189,911,139.84/16,867.20
  6. Step 6: Final answer
    x = 11,259.20

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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.