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Finding the Fourth Proportional to 66,852.91, 100,257.49 and 31,303.23

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Solution

The fourth proportional to 66,852.91, 100,257.49 and 31,303.23 is: 46,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,852.91 : 100,257.49 = 31,303.23 : x
  2. Step 2: Convert to fraction form
    66,852.91/100,257.49 = 31,303.23/x
  3. Step 3: Cross multiply
    66,852.91x = 100,257.49 × 31,303.23
  4. Step 4: Simplify right side
    66,852.91x = 3,138,383,268.69
  5. Step 5: Solve for x
    x = 3,138,383,268.69/66,852.91
  6. Step 6: Final answer
    x = 46,944.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.