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Finding the Fourth Proportional to 64,449.80, 96,674.70 and 51,230.60

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Solution

The fourth proportional to 64,449.80, 96,674.70 and 51,230.60 is: 76,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,449.80 : 96,674.70 = 51,230.60 : x
  2. Step 2: Convert to fraction form
    64,449.80/96,674.70 = 51,230.60/x
  3. Step 3: Cross multiply
    64,449.80x = 96,674.70 × 51,230.60
  4. Step 4: Simplify right side
    64,449.80x = 4,952,702,885.82
  5. Step 5: Solve for x
    x = 4,952,702,885.82/64,449.80
  6. Step 6: Final answer
    x = 76,845.90

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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.