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Finding the Fourth Proportional to 66,558.99, 91,851.05 and 36,344.33

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Solution

The fourth proportional to 66,558.99, 91,851.05 and 36,344.33 is: 50,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,558.99 : 91,851.05 = 36,344.33 : x
  2. Step 2: Convert to fraction form
    66,558.99/91,851.05 = 36,344.33/x
  3. Step 3: Cross multiply
    66,558.99x = 91,851.05 × 36,344.33
  4. Step 4: Simplify right side
    66,558.99x = 3,338,264,872.05
  5. Step 5: Solve for x
    x = 3,338,264,872.05/66,558.99
  6. Step 6: Final answer
    x = 50,154.98

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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.