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Finding the Fourth Proportional to 19,009.08, 28,513.08 and 7,324.83

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Solution

The fourth proportional to 19,009.08, 28,513.08 and 7,324.83 is: 10,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.08 : 28,513.08 = 7,324.83 : x
  2. Step 2: Convert to fraction form
    19,009.08/28,513.08 = 7,324.83/x
  3. Step 3: Cross multiply
    19,009.08x = 28,513.08 × 7,324.83
  4. Step 4: Simplify right side
    19,009.08x = 208,853,463.78
  5. Step 5: Solve for x
    x = 208,853,463.78/19,009.08
  6. Step 6: Final answer
    x = 10,987.04

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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.