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Finding the Fourth Proportional to 48,129.73, 72,184.87 and 13,069.69

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Solution

The fourth proportional to 48,129.73, 72,184.87 and 13,069.69 is: 19,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,129.73 : 72,184.87 = 13,069.69 : x
  2. Step 2: Convert to fraction form
    48,129.73/72,184.87 = 13,069.69/x
  3. Step 3: Cross multiply
    48,129.73x = 72,184.87 × 13,069.69
  4. Step 4: Simplify right side
    48,129.73x = 943,433,873.59
  5. Step 5: Solve for x
    x = 943,433,873.59/48,129.73
  6. Step 6: Final answer
    x = 19,601.89

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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.