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Finding the Fourth Proportional to 66,310.84, 91,508.70 and 36,097.84

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Solution

The fourth proportional to 66,310.84, 91,508.70 and 36,097.84 is: 49,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.84 : 91,508.70 = 36,097.84 : x
  2. Step 2: Convert to fraction form
    66,310.84/91,508.70 = 36,097.84/x
  3. Step 3: Cross multiply
    66,310.84x = 91,508.70 × 36,097.84
  4. Step 4: Simplify right side
    66,310.84x = 3,303,266,411.21
  5. Step 5: Solve for x
    x = 3,303,266,411.21/66,310.84
  6. Step 6: Final answer
    x = 49,814.88

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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.