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Finding the Fourth Proportional to 15,952.75, 22,015.53 and 8,879.63

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Solution

The fourth proportional to 15,952.75, 22,015.53 and 8,879.63 is: 12,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,952.75 : 22,015.53 = 8,879.63 : x
  2. Step 2: Convert to fraction form
    15,952.75/22,015.53 = 8,879.63/x
  3. Step 3: Cross multiply
    15,952.75x = 22,015.53 × 8,879.63
  4. Step 4: Simplify right side
    15,952.75x = 195,489,606.18
  5. Step 5: Solve for x
    x = 195,489,606.18/15,952.75
  6. Step 6: Final answer
    x = 12,254.29

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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.