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Finding the Fourth Proportional to 36,275.50, 50,060.40 and 21,178.66

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Solution

The fourth proportional to 36,275.50, 50,060.40 and 21,178.66 is: 29,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,275.50 : 50,060.40 = 21,178.66 : x
  2. Step 2: Convert to fraction form
    36,275.50/50,060.40 = 21,178.66/x
  3. Step 3: Cross multiply
    36,275.50x = 50,060.40 × 21,178.66
  4. Step 4: Simplify right side
    36,275.50x = 1,060,212,191.06
  5. Step 5: Solve for x
    x = 1,060,212,191.06/36,275.50
  6. Step 6: Final answer
    x = 29,226.67

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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.