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Finding the Fourth Proportional to 72,266.35, 108,400.21 and 32,287.35

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Solution

The fourth proportional to 72,266.35, 108,400.21 and 32,287.35 is: 48,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,266.35 : 108,400.21 = 32,287.35 : x
  2. Step 2: Convert to fraction form
    72,266.35/108,400.21 = 32,287.35/x
  3. Step 3: Cross multiply
    72,266.35x = 108,400.21 × 32,287.35
  4. Step 4: Simplify right side
    72,266.35x = 3,499,955,220.15
  5. Step 5: Solve for x
    x = 3,499,955,220.15/72,266.35
  6. Step 6: Final answer
    x = 48,431.33

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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.