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Finding the Fourth Proportional to 66,563.16, 91,857.12 and 36,348.60

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Solution

The fourth proportional to 66,563.16, 91,857.12 and 36,348.60 is: 50,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,563.16 : 91,857.12 = 36,348.60 : x
  2. Step 2: Convert to fraction form
    66,563.16/91,857.12 = 36,348.60/x
  3. Step 3: Cross multiply
    66,563.16x = 91,857.12 × 36,348.60
  4. Step 4: Simplify right side
    66,563.16x = 3,338,877,712.03
  5. Step 5: Solve for x
    x = 3,338,877,712.03/66,563.16
  6. Step 6: Final answer
    x = 50,161.05

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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.