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Finding the Fourth Proportional to 66,591.26, 91,898.67 and 38,296.94

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Solution

The fourth proportional to 66,591.26, 91,898.67 and 38,296.94 is: 52,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.26 : 91,898.67 = 38,296.94 : x
  2. Step 2: Convert to fraction form
    66,591.26/91,898.67 = 38,296.94/x
  3. Step 3: Cross multiply
    66,591.26x = 91,898.67 × 38,296.94
  4. Step 4: Simplify right side
    66,591.26x = 3,519,437,851.07
  5. Step 5: Solve for x
    x = 3,519,437,851.07/66,591.26
  6. Step 6: Final answer
    x = 52,851.35

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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.