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Finding the Fourth Proportional to 15,645.56, 23,471.98 and 6,881.15

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Solution

The fourth proportional to 15,645.56, 23,471.98 and 6,881.15 is: 10,323.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.56 : 23,471.98 = 6,881.15 : x
  2. Step 2: Convert to fraction form
    15,645.56/23,471.98 = 6,881.15/x
  3. Step 3: Cross multiply
    15,645.56x = 23,471.98 × 6,881.15
  4. Step 4: Simplify right side
    15,645.56x = 161,514,256.65
  5. Step 5: Solve for x
    x = 161,514,256.65/15,645.56
  6. Step 6: Final answer
    x = 10,323.33

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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.