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Finding the Fourth Proportional to 66,300.99, 91,493.92 and 36,085.56

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Solution

The fourth proportional to 66,300.99, 91,493.92 and 36,085.56 is: 49,797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300.99 : 91,493.92 = 36,085.56 : x
  2. Step 2: Convert to fraction form
    66,300.99/91,493.92 = 36,085.56/x
  3. Step 3: Cross multiply
    66,300.99x = 91,493.92 × 36,085.56
  4. Step 4: Simplify right side
    66,300.99x = 3,301,609,339.80
  5. Step 5: Solve for x
    x = 3,301,609,339.80/66,300.99
  6. Step 6: Final answer
    x = 49,797.29

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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.