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Finding the Fourth Proportional to 16,879.92, 25,315.02 and 6,346.68

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Solution

The fourth proportional to 16,879.92, 25,315.02 and 6,346.68 is: 9,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.92 : 25,315.02 = 6,346.68 : x
  2. Step 2: Convert to fraction form
    16,879.92/25,315.02 = 6,346.68/x
  3. Step 3: Cross multiply
    16,879.92x = 25,315.02 × 6,346.68
  4. Step 4: Simplify right side
    16,879.92x = 160,666,331.13
  5. Step 5: Solve for x
    x = 160,666,331.13/16,879.92
  6. Step 6: Final answer
    x = 9,518.19

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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.