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Finding the Fourth Proportional to 32,486.72, 44,818.31 and 21,879.77

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Solution

The fourth proportional to 32,486.72, 44,818.31 and 21,879.77 is: 30,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,486.72 : 44,818.31 = 21,879.77 : x
  2. Step 2: Convert to fraction form
    32,486.72/44,818.31 = 21,879.77/x
  3. Step 3: Cross multiply
    32,486.72x = 44,818.31 × 21,879.77
  4. Step 4: Simplify right side
    32,486.72x = 980,614,145.20
  5. Step 5: Solve for x
    x = 980,614,145.20/32,486.72
  6. Step 6: Final answer
    x = 30,185.08

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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.