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Finding the Fourth Proportional to 64,618.20, 96,927.12 and 20,245.14

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Solution

The fourth proportional to 64,618.20, 96,927.12 and 20,245.14 is: 30,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,618.20 : 96,927.12 = 20,245.14 : x
  2. Step 2: Convert to fraction form
    64,618.20/96,927.12 = 20,245.14/x
  3. Step 3: Cross multiply
    64,618.20x = 96,927.12 × 20,245.14
  4. Step 4: Simplify right side
    64,618.20x = 1,962,303,114.20
  5. Step 5: Solve for x
    x = 1,962,303,114.20/64,618.20
  6. Step 6: Final answer
    x = 30,367.65

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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.