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Finding the Fourth Proportional to 73,263.27, 109,903.80 and 20,672.76

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Solution

The fourth proportional to 73,263.27, 109,903.80 and 20,672.76 is: 31,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,263.27 : 109,903.80 = 20,672.76 : x
  2. Step 2: Convert to fraction form
    73,263.27/109,903.80 = 20,672.76/x
  3. Step 3: Cross multiply
    73,263.27x = 109,903.80 × 20,672.76
  4. Step 4: Simplify right side
    73,263.27x = 2,272,014,880.49
  5. Step 5: Solve for x
    x = 2,272,014,880.49/73,263.27
  6. Step 6: Final answer
    x = 31,011.65

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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.