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Finding the Fourth Proportional to 48,147.53, 72,221.09 and 13,087.09

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Solution

The fourth proportional to 48,147.53, 72,221.09 and 13,087.09 is: 19,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,147.53 : 72,221.09 = 13,087.09 : x
  2. Step 2: Convert to fraction form
    48,147.53/72,221.09 = 13,087.09/x
  3. Step 3: Cross multiply
    48,147.53x = 72,221.09 × 13,087.09
  4. Step 4: Simplify right side
    48,147.53x = 945,163,756.89
  5. Step 5: Solve for x
    x = 945,163,756.89/48,147.53
  6. Step 6: Final answer
    x = 19,630.58

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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.