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Finding the Fourth Proportional to 13,293.92, 19,939.68 and 4,059.92

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Solution

The fourth proportional to 13,293.92, 19,939.68 and 4,059.92 is: 6,089.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.92 : 19,939.68 = 4,059.92 : x
  2. Step 2: Convert to fraction form
    13,293.92/19,939.68 = 4,059.92/x
  3. Step 3: Cross multiply
    13,293.92x = 19,939.68 × 4,059.92
  4. Step 4: Simplify right side
    13,293.92x = 80,953,505.63
  5. Step 5: Solve for x
    x = 80,953,505.63/13,293.92
  6. Step 6: Final answer
    x = 6,089.51

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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.