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Finding the Fourth Proportional to 16,879.24, 25,326.42 and 7,020.64

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Solution

The fourth proportional to 16,879.24, 25,326.42 and 7,020.64 is: 10,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.24 : 25,326.42 = 7,020.64 : x
  2. Step 2: Convert to fraction form
    16,879.24/25,326.42 = 7,020.64/x
  3. Step 3: Cross multiply
    16,879.24x = 25,326.42 × 7,020.64
  4. Step 4: Simplify right side
    16,879.24x = 177,807,677.31
  5. Step 5: Solve for x
    x = 177,807,677.31/16,879.24
  6. Step 6: Final answer
    x = 10,534.10

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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.