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Finding the Fourth Proportional to 35,907.76, 49,551.84 and 19,991.88

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Solution

The fourth proportional to 35,907.76, 49,551.84 and 19,991.88 is: 27,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,907.76 : 49,551.84 = 19,991.88 : x
  2. Step 2: Convert to fraction form
    35,907.76/49,551.84 = 19,991.88/x
  3. Step 3: Cross multiply
    35,907.76x = 49,551.84 × 19,991.88
  4. Step 4: Simplify right side
    35,907.76x = 990,634,439.06
  5. Step 5: Solve for x
    x = 990,634,439.06/35,907.76
  6. Step 6: Final answer
    x = 27,588.31

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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.