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Finding the Fourth Proportional to 35,759.64, 49,348.84 and 19,845.12

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Solution

The fourth proportional to 35,759.64, 49,348.84 and 19,845.12 is: 27,386.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,759.64 : 49,348.84 = 19,845.12 : x
  2. Step 2: Convert to fraction form
    35,759.64/49,348.84 = 19,845.12/x
  3. Step 3: Cross multiply
    35,759.64x = 49,348.84 × 19,845.12
  4. Step 4: Simplify right side
    35,759.64x = 979,333,651.66
  5. Step 5: Solve for x
    x = 979,333,651.66/35,759.64
  6. Step 6: Final answer
    x = 27,386.56

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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.