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Finding the Fourth Proportional to 14,879.52, 22,317.34 and 8,642.88

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Solution

The fourth proportional to 14,879.52, 22,317.34 and 8,642.88 is: 12,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.52 : 22,317.34 = 8,642.88 : x
  2. Step 2: Convert to fraction form
    14,879.52/22,317.34 = 8,642.88/x
  3. Step 3: Cross multiply
    14,879.52x = 22,317.34 × 8,642.88
  4. Step 4: Simplify right side
    14,879.52x = 192,886,091.54
  5. Step 5: Solve for x
    x = 192,886,091.54/14,879.52
  6. Step 6: Final answer
    x = 12,963.19

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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.