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Finding the Fourth Proportional to 64,047.80, 96,014.10 and 40,662.20

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Solution

The fourth proportional to 64,047.80, 96,014.10 and 40,662.20 is: 60,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,047.80 : 96,014.10 = 40,662.20 : x
  2. Step 2: Convert to fraction form
    64,047.80/96,014.10 = 40,662.20/x
  3. Step 3: Cross multiply
    64,047.80x = 96,014.10 × 40,662.20
  4. Step 4: Simplify right side
    64,047.80x = 3,904,144,537.02
  5. Step 5: Solve for x
    x = 3,904,144,537.02/64,047.80
  6. Step 6: Final answer
    x = 60,956.73

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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.