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Finding the Fourth Proportional to 35,687.97, 53,507.35 and 15,687.85

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Solution

The fourth proportional to 35,687.97, 53,507.35 and 15,687.85 is: 23,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,687.97 : 53,507.35 = 15,687.85 : x
  2. Step 2: Convert to fraction form
    35,687.97/53,507.35 = 15,687.85/x
  3. Step 3: Cross multiply
    35,687.97x = 53,507.35 × 15,687.85
  4. Step 4: Simplify right side
    35,687.97x = 839,415,280.70
  5. Step 5: Solve for x
    x = 839,415,280.70/35,687.97
  6. Step 6: Final answer
    x = 23,520.96

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1.5x scale

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.