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Finding the Fourth Proportional to 15,594.54, 21,523.09 and 8,879.24

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Solution

The fourth proportional to 15,594.54, 21,523.09 and 8,879.24 is: 12,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.54 : 21,523.09 = 8,879.24 : x
  2. Step 2: Convert to fraction form
    15,594.54/21,523.09 = 8,879.24/x
  3. Step 3: Cross multiply
    15,594.54x = 21,523.09 × 8,879.24
  4. Step 4: Simplify right side
    15,594.54x = 191,108,681.65
  5. Step 5: Solve for x
    x = 191,108,681.65/15,594.54
  6. Step 6: Final answer
    x = 12,254.85

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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.