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Finding the Fourth Proportional to 35,957.69, 49,621.84 and 20,043.15

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Solution

The fourth proportional to 35,957.69, 49,621.84 and 20,043.15 is: 27,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,957.69 : 49,621.84 = 20,043.15 : x
  2. Step 2: Convert to fraction form
    35,957.69/49,621.84 = 20,043.15/x
  3. Step 3: Cross multiply
    35,957.69x = 49,621.84 × 20,043.15
  4. Step 4: Simplify right side
    35,957.69x = 994,577,982.40
  5. Step 5: Solve for x
    x = 994,577,982.40/35,957.69
  6. Step 6: Final answer
    x = 27,659.67

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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.