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Finding the Fourth Proportional to 66,083.64, 91,195.51 and 35,868.97

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Solution

The fourth proportional to 66,083.64, 91,195.51 and 35,868.97 is: 49,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,083.64 : 91,195.51 = 35,868.97 : x
  2. Step 2: Convert to fraction form
    66,083.64/91,195.51 = 35,868.97/x
  3. Step 3: Cross multiply
    66,083.64x = 91,195.51 × 35,868.97
  4. Step 4: Simplify right side
    66,083.64x = 3,271,088,556.35
  5. Step 5: Solve for x
    x = 3,271,088,556.35/66,083.64
  6. Step 6: Final answer
    x = 49,499.22

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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.