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Finding the Fourth Proportional to 32,682.48, 45,086.11 and 20,724.99

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Solution

The fourth proportional to 32,682.48, 45,086.11 and 20,724.99 is: 28,590.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,682.48 : 45,086.11 = 20,724.99 : x
  2. Step 2: Convert to fraction form
    32,682.48/45,086.11 = 20,724.99/x
  3. Step 3: Cross multiply
    32,682.48x = 45,086.11 × 20,724.99
  4. Step 4: Simplify right side
    32,682.48x = 934,409,178.89
  5. Step 5: Solve for x
    x = 934,409,178.89/32,682.48
  6. Step 6: Final answer
    x = 28,590.52

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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.