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Finding the Fourth Proportional to 48,168.69, 72,251.69 and 13,108.65

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Solution

The fourth proportional to 48,168.69, 72,251.69 and 13,108.65 is: 19,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,168.69 : 72,251.69 = 13,108.65 : x
  2. Step 2: Convert to fraction form
    48,168.69/72,251.69 = 13,108.65/x
  3. Step 3: Cross multiply
    48,168.69x = 72,251.69 × 13,108.65
  4. Step 4: Simplify right side
    48,168.69x = 947,122,050.58
  5. Step 5: Solve for x
    x = 947,122,050.58/48,168.69
  6. Step 6: Final answer
    x = 19,662.61

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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.