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Finding the Fourth Proportional to 64,709.72, 89,285.64 and 37,846.99

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Solution

The fourth proportional to 64,709.72, 89,285.64 and 37,846.99 is: 52,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,709.72 : 89,285.64 = 37,846.99 : x
  2. Step 2: Convert to fraction form
    64,709.72/89,285.64 = 37,846.99/x
  3. Step 3: Cross multiply
    64,709.72x = 89,285.64 × 37,846.99
  4. Step 4: Simplify right side
    64,709.72x = 3,379,192,404.56
  5. Step 5: Solve for x
    x = 3,379,192,404.56/64,709.72
  6. Step 6: Final answer
    x = 52,220.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.