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Finding the Fourth Proportional to 66,098.16, 91,217.88 and 37,803.78

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Solution

The fourth proportional to 66,098.16, 91,217.88 and 37,803.78 is: 52,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,098.16 : 91,217.88 = 37,803.78 : x
  2. Step 2: Convert to fraction form
    66,098.16/91,217.88 = 37,803.78/x
  3. Step 3: Cross multiply
    66,098.16x = 91,217.88 × 37,803.78
  4. Step 4: Simplify right side
    66,098.16x = 3,448,380,667.59
  5. Step 5: Solve for x
    x = 3,448,380,667.59/66,098.16
  6. Step 6: Final answer
    x = 52,170.60

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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.