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Finding the Fourth Proportional to 32,485.73, 48,728.79 and 10,299.15

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Solution

The fourth proportional to 32,485.73, 48,728.79 and 10,299.15 is: 15,448.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,485.73 : 48,728.79 = 10,299.15 : x
  2. Step 2: Convert to fraction form
    32,485.73/48,728.79 = 10,299.15/x
  3. Step 3: Cross multiply
    32,485.73x = 48,728.79 × 10,299.15
  4. Step 4: Simplify right side
    32,485.73x = 501,865,117.53
  5. Step 5: Solve for x
    x = 501,865,117.53/32,485.73
  6. Step 6: Final answer
    x = 15,448.79

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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.