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Finding the Fourth Proportional to 67,378.72, 101,068.42 and 17,455.32

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Solution

The fourth proportional to 67,378.72, 101,068.42 and 17,455.32 is: 26,183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,378.72 : 101,068.42 = 17,455.32 : x
  2. Step 2: Convert to fraction form
    67,378.72/101,068.42 = 17,455.32/x
  3. Step 3: Cross multiply
    67,378.72x = 101,068.42 × 17,455.32
  4. Step 4: Simplify right side
    67,378.72x = 1,764,181,612.99
  5. Step 5: Solve for x
    x = 1,764,181,612.99/67,378.72
  6. Step 6: Final answer
    x = 26,183.07

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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.