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Finding the Fourth Proportional to 12,458.99, 18,697.24 and 11,267.92

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Solution

The fourth proportional to 12,458.99, 18,697.24 and 11,267.92 is: 16,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.99 : 18,697.24 = 11,267.92 : x
  2. Step 2: Convert to fraction form
    12,458.99/18,697.24 = 11,267.92/x
  3. Step 3: Cross multiply
    12,458.99x = 18,697.24 × 11,267.92
  4. Step 4: Simplify right side
    12,458.99x = 210,679,004.54
  5. Step 5: Solve for x
    x = 210,679,004.54/12,458.99
  6. Step 6: Final answer
    x = 16,909.80

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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.