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Finding the Fourth Proportional to 54,479.58, 81,670.05 and 37,847.40

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Solution

The fourth proportional to 54,479.58, 81,670.05 and 37,847.40 is: 56,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,479.58 : 81,670.05 = 37,847.40 : x
  2. Step 2: Convert to fraction form
    54,479.58/81,670.05 = 37,847.40/x
  3. Step 3: Cross multiply
    54,479.58x = 81,670.05 × 37,847.40
  4. Step 4: Simplify right side
    54,479.58x = 3,090,999,050.37
  5. Step 5: Solve for x
    x = 3,090,999,050.37/54,479.58
  6. Step 6: Final answer
    x = 56,736.84

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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.