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Finding the Fourth Proportional to 12,086.14, 18,130.08 and 5,059.08

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Solution

The fourth proportional to 12,086.14, 18,130.08 and 5,059.08 is: 7,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.14 : 18,130.08 = 5,059.08 : x
  2. Step 2: Convert to fraction form
    12,086.14/18,130.08 = 5,059.08/x
  3. Step 3: Cross multiply
    12,086.14x = 18,130.08 × 5,059.08
  4. Step 4: Simplify right side
    12,086.14x = 91,721,570.45
  5. Step 5: Solve for x
    x = 91,721,570.45/12,086.14
  6. Step 6: Final answer
    x = 7,588.99

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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.