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Finding the Fourth Proportional to 66,154.70, 91,294.13 and 35,940.26

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Solution

The fourth proportional to 66,154.70, 91,294.13 and 35,940.26 is: 49,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,154.70 : 91,294.13 = 35,940.26 : x
  2. Step 2: Convert to fraction form
    66,154.70/91,294.13 = 35,940.26/x
  3. Step 3: Cross multiply
    66,154.70x = 91,294.13 × 35,940.26
  4. Step 4: Simplify right side
    66,154.70x = 3,281,135,086.76
  5. Step 5: Solve for x
    x = 3,281,135,086.76/66,154.70
  6. Step 6: Final answer
    x = 49,597.91

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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.