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Finding the Fourth Proportional to 57,093.81, 78,788.86 and 31,600.23

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Solution

The fourth proportional to 57,093.81, 78,788.86 and 31,600.23 is: 43,607.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,093.81 : 78,788.86 = 31,600.23 : x
  2. Step 2: Convert to fraction form
    57,093.81/78,788.86 = 31,600.23/x
  3. Step 3: Cross multiply
    57,093.81x = 78,788.86 × 31,600.23
  4. Step 4: Simplify right side
    57,093.81x = 2,489,746,097.44
  5. Step 5: Solve for x
    x = 2,489,746,097.44/57,093.81
  6. Step 6: Final answer
    x = 43,607.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.