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Finding the Fourth Proportional to 19,179.99, 28,658.81 and 15,010.11

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Solution

The fourth proportional to 19,179.99, 28,658.81 and 15,010.11 is: 22,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.99 : 28,658.81 = 15,010.11 : x
  2. Step 2: Convert to fraction form
    19,179.99/28,658.81 = 15,010.11/x
  3. Step 3: Cross multiply
    19,179.99x = 28,658.81 × 15,010.11
  4. Step 4: Simplify right side
    19,179.99x = 430,171,928.09
  5. Step 5: Solve for x
    x = 430,171,928.09/19,179.99
  6. Step 6: Final answer
    x = 22,428.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.