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Finding the Fourth Proportional to 49,625.60, 74,412.80 and 18,444.80

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Solution

The fourth proportional to 49,625.60, 74,412.80 and 18,444.80 is: 27,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,625.60 : 74,412.80 = 18,444.80 : x
  2. Step 2: Convert to fraction form
    49,625.60/74,412.80 = 18,444.80/x
  3. Step 3: Cross multiply
    49,625.60x = 74,412.80 × 18,444.80
  4. Step 4: Simplify right side
    49,625.60x = 1,372,529,213.44
  5. Step 5: Solve for x
    x = 1,372,529,213.44/49,625.60
  6. Step 6: Final answer
    x = 27,657.69

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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.