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Finding the Fourth Proportional to 66,015.14, 91,100.94 and 35,800.46

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Solution

The fourth proportional to 66,015.14, 91,100.94 and 35,800.46 is: 49,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,015.14 : 91,100.94 = 35,800.46 : x
  2. Step 2: Convert to fraction form
    66,015.14/91,100.94 = 35,800.46/x
  3. Step 3: Cross multiply
    66,015.14x = 91,100.94 × 35,800.46
  4. Step 4: Simplify right side
    66,015.14x = 3,261,455,102.93
  5. Step 5: Solve for x
    x = 3,261,455,102.93/66,015.14
  6. Step 6: Final answer
    x = 49,404.65

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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.