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Finding the Fourth Proportional to 48,108.65, 72,170.80 and 14,828.72

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Solution

The fourth proportional to 48,108.65, 72,170.80 and 14,828.72 is: 22,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,108.65 : 72,170.80 = 14,828.72 : x
  2. Step 2: Convert to fraction form
    48,108.65/72,170.80 = 14,828.72/x
  3. Step 3: Cross multiply
    48,108.65x = 72,170.80 × 14,828.72
  4. Step 4: Simplify right side
    48,108.65x = 1,070,200,187.45
  5. Step 5: Solve for x
    x = 1,070,200,187.45/48,108.65
  6. Step 6: Final answer
    x = 22,245.49

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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.