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Finding the Fourth Proportional to 64,245.56, 96,391.16 and 28,703.62

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Solution

The fourth proportional to 64,245.56, 96,391.16 and 28,703.62 is: 43,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,245.56 : 96,391.16 = 28,703.62 : x
  2. Step 2: Convert to fraction form
    64,245.56/96,391.16 = 28,703.62/x
  3. Step 3: Cross multiply
    64,245.56x = 96,391.16 × 28,703.62
  4. Step 4: Simplify right side
    64,245.56x = 2,766,775,745.17
  5. Step 5: Solve for x
    x = 2,766,775,745.17/64,245.56
  6. Step 6: Final answer
    x = 43,065.63

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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.