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Finding the Fourth Proportional to 15,993.91, 22,061.91 and 10,319.77

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Solution

The fourth proportional to 15,993.91, 22,061.91 and 10,319.77 is: 14,235.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.91 : 22,061.91 = 10,319.77 : x
  2. Step 2: Convert to fraction form
    15,993.91/22,061.91 = 10,319.77/x
  3. Step 3: Cross multiply
    15,993.91x = 22,061.91 × 10,319.77
  4. Step 4: Simplify right side
    15,993.91x = 227,673,836.96
  5. Step 5: Solve for x
    x = 227,673,836.96/15,993.91
  6. Step 6: Final answer
    x = 14,235.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.