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Finding the Fourth Proportional to 66,563.16, 91,858.71 and 36,348.69

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Solution

The fourth proportional to 66,563.16, 91,858.71 and 36,348.69 is: 50,162.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,563.16 : 91,858.71 = 36,348.69 : x
  2. Step 2: Convert to fraction form
    66,563.16/91,858.71 = 36,348.69/x
  3. Step 3: Cross multiply
    66,563.16x = 91,858.71 × 36,348.69
  4. Step 4: Simplify right side
    66,563.16x = 3,338,943,773.59
  5. Step 5: Solve for x
    x = 3,338,943,773.59/66,563.16
  6. Step 6: Final answer
    x = 50,162.04

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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.