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Finding the Fourth Proportional to 73,114.76, 100,898.52 and 39,580.76

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Solution

The fourth proportional to 73,114.76, 100,898.52 and 39,580.76 is: 54,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,114.76 : 100,898.52 = 39,580.76 : x
  2. Step 2: Convert to fraction form
    73,114.76/100,898.52 = 39,580.76/x
  3. Step 3: Cross multiply
    73,114.76x = 100,898.52 × 39,580.76
  4. Step 4: Simplify right side
    73,114.76x = 3,993,640,104.48
  5. Step 5: Solve for x
    x = 3,993,640,104.48/73,114.76
  6. Step 6: Final answer
    x = 54,621.53

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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.