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Finding the Fourth Proportional to 32,485.49, 48,728.23 and 7,861.49

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Solution

The fourth proportional to 32,485.49, 48,728.23 and 7,861.49 is: 11,792.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,485.49 : 48,728.23 = 7,861.49 : x
  2. Step 2: Convert to fraction form
    32,485.49/48,728.23 = 7,861.49/x
  3. Step 3: Cross multiply
    32,485.49x = 48,728.23 × 7,861.49
  4. Step 4: Simplify right side
    32,485.49x = 383,076,249.22
  5. Step 5: Solve for x
    x = 383,076,249.22/32,485.49
  6. Step 6: Final answer
    x = 11,792.23

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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.