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Finding the Fourth Proportional to 35,912.88, 53,869.31 and 11,288.88

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Solution

The fourth proportional to 35,912.88, 53,869.31 and 11,288.88 is: 16,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,912.88 : 53,869.31 = 11,288.88 : x
  2. Step 2: Convert to fraction form
    35,912.88/53,869.31 = 11,288.88/x
  3. Step 3: Cross multiply
    35,912.88x = 53,869.31 × 11,288.88
  4. Step 4: Simplify right side
    35,912.88x = 608,124,176.27
  5. Step 5: Solve for x
    x = 608,124,176.27/35,912.88
  6. Step 6: Final answer
    x = 16,933.32

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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.