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Finding the Fourth Proportional to 35,699.74, 49,268.55 and 19,789.31

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Solution

The fourth proportional to 35,699.74, 49,268.55 and 19,789.31 is: 27,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,699.74 : 49,268.55 = 19,789.31 : x
  2. Step 2: Convert to fraction form
    35,699.74/49,268.55 = 19,789.31/x
  3. Step 3: Cross multiply
    35,699.74x = 49,268.55 × 19,789.31
  4. Step 4: Simplify right side
    35,699.74x = 974,990,806.58
  5. Step 5: Solve for x
    x = 974,990,806.58/35,699.74
  6. Step 6: Final answer
    x = 27,310.87

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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.