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Finding the Fourth Proportional to 17,115.30, 25,672.95 and 16,459.20

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Solution

The fourth proportional to 17,115.30, 25,672.95 and 16,459.20 is: 24,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.30 : 25,672.95 = 16,459.20 : x
  2. Step 2: Convert to fraction form
    17,115.30/25,672.95 = 16,459.20/x
  3. Step 3: Cross multiply
    17,115.30x = 25,672.95 × 16,459.20
  4. Step 4: Simplify right side
    17,115.30x = 422,556,218.64
  5. Step 5: Solve for x
    x = 422,556,218.64/17,115.30
  6. Step 6: Final answer
    x = 24,688.80

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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.