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Finding the Fourth Proportional to 72,596.49, 108,901.62 and 28,226.67

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Solution

The fourth proportional to 72,596.49, 108,901.62 and 28,226.67 is: 42,342.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596.49 : 108,901.62 = 28,226.67 : x
  2. Step 2: Convert to fraction form
    72,596.49/108,901.62 = 28,226.67/x
  3. Step 3: Cross multiply
    72,596.49x = 108,901.62 × 28,226.67
  4. Step 4: Simplify right side
    72,596.49x = 3,073,930,090.21
  5. Step 5: Solve for x
    x = 3,073,930,090.21/72,596.49
  6. Step 6: Final answer
    x = 42,342.68

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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.