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Finding the Fourth Proportional to 35,687.76, 53,532.52 and 11,995.66

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Solution

The fourth proportional to 35,687.76, 53,532.52 and 11,995.66 is: 17,993.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,687.76 : 53,532.52 = 11,995.66 : x
  2. Step 2: Convert to fraction form
    35,687.76/53,532.52 = 11,995.66/x
  3. Step 3: Cross multiply
    35,687.76x = 53,532.52 × 11,995.66
  4. Step 4: Simplify right side
    35,687.76x = 642,157,908.86
  5. Step 5: Solve for x
    x = 642,157,908.86/35,687.76
  6. Step 6: Final answer
    x = 17,993.79

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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.