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Finding the Fourth Proportional to 66,118.01, 91,242.56 and 35,903.09

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Solution

The fourth proportional to 66,118.01, 91,242.56 and 35,903.09 is: 49,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,118.01 : 91,242.56 = 35,903.09 : x
  2. Step 2: Convert to fraction form
    66,118.01/91,242.56 = 35,903.09/x
  3. Step 3: Cross multiply
    66,118.01x = 91,242.56 × 35,903.09
  4. Step 4: Simplify right side
    66,118.01x = 3,275,889,843.51
  5. Step 5: Solve for x
    x = 3,275,889,843.51/66,118.01
  6. Step 6: Final answer
    x = 49,546.10

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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.