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Finding the Fourth Proportional to 71,774.63, 107,661.99 and 32,285.61

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Solution

The fourth proportional to 71,774.63, 107,661.99 and 32,285.61 is: 48,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,774.63 : 107,661.99 = 32,285.61 : x
  2. Step 2: Convert to fraction form
    71,774.63/107,661.99 = 32,285.61/x
  3. Step 3: Cross multiply
    71,774.63x = 107,661.99 × 32,285.61
  4. Step 4: Simplify right side
    71,774.63x = 3,475,933,172.42
  5. Step 5: Solve for x
    x = 3,475,933,172.42/71,774.63
  6. Step 6: Final answer
    x = 48,428.44

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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.