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Finding the Fourth Proportional to 12,043.99, 18,060.06 and 5,021.90

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Solution

The fourth proportional to 12,043.99, 18,060.06 and 5,021.90 is: 7,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.99 : 18,060.06 = 5,021.90 : x
  2. Step 2: Convert to fraction form
    12,043.99/18,060.06 = 5,021.90/x
  3. Step 3: Cross multiply
    12,043.99x = 18,060.06 × 5,021.90
  4. Step 4: Simplify right side
    12,043.99x = 90,695,811.57
  5. Step 5: Solve for x
    x = 90,695,811.57/12,043.99
  6. Step 6: Final answer
    x = 7,530.38

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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.