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Finding the Fourth Proportional to 48,991.78, 73,479.80 and 13,444.80

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Solution

The fourth proportional to 48,991.78, 73,479.80 and 13,444.80 is: 20,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,991.78 : 73,479.80 = 13,444.80 : x
  2. Step 2: Convert to fraction form
    48,991.78/73,479.80 = 13,444.80/x
  3. Step 3: Cross multiply
    48,991.78x = 73,479.80 × 13,444.80
  4. Step 4: Simplify right side
    48,991.78x = 987,920,814.03
  5. Step 5: Solve for x
    x = 987,920,814.03/48,991.78
  6. Step 6: Final answer
    x = 20,165.03

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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.