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Finding the Fourth Proportional to 50,471.70, 69,657.65 and 28,969.94

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Solution

The fourth proportional to 50,471.70, 69,657.65 and 28,969.94 is: 39,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,471.70 : 69,657.65 = 28,969.94 : x
  2. Step 2: Convert to fraction form
    50,471.70/69,657.65 = 28,969.94/x
  3. Step 3: Cross multiply
    50,471.70x = 69,657.65 × 28,969.94
  4. Step 4: Simplify right side
    50,471.70x = 2,017,977,941.04
  5. Step 5: Solve for x
    x = 2,017,977,941.04/50,471.70
  6. Step 6: Final answer
    x = 39,982.37

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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.