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Finding the Fourth Proportional to 46,991.67, 70,505.93 and 20,677.94

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Solution

The fourth proportional to 46,991.67, 70,505.93 and 20,677.94 is: 31,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,991.67 : 70,505.93 = 20,677.94 : x
  2. Step 2: Convert to fraction form
    46,991.67/70,505.93 = 20,677.94/x
  3. Step 3: Cross multiply
    46,991.67x = 70,505.93 × 20,677.94
  4. Step 4: Simplify right side
    46,991.67x = 1,457,917,286.79
  5. Step 5: Solve for x
    x = 1,457,917,286.79/46,991.67
  6. Step 6: Final answer
    x = 31,025.02

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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.