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Finding the Fourth Proportional to 12,157.01, 18,228.22 and 5,574.95

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Solution

The fourth proportional to 12,157.01, 18,228.22 and 5,574.95 is: 8,359.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.01 : 18,228.22 = 5,574.95 : x
  2. Step 2: Convert to fraction form
    12,157.01/18,228.22 = 5,574.95/x
  3. Step 3: Cross multiply
    12,157.01x = 18,228.22 × 5,574.95
  4. Step 4: Simplify right side
    12,157.01x = 101,621,296.07
  5. Step 5: Solve for x
    x = 101,621,296.07/12,157.01
  6. Step 6: Final answer
    x = 8,359.07

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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.