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Finding the Fourth Proportional to 71,356.32, 107,035.47 and 33,920.19

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Solution

The fourth proportional to 71,356.32, 107,035.47 and 33,920.19 is: 50,880.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,356.32 : 107,035.47 = 33,920.19 : x
  2. Step 2: Convert to fraction form
    71,356.32/107,035.47 = 33,920.19/x
  3. Step 3: Cross multiply
    71,356.32x = 107,035.47 × 33,920.19
  4. Step 4: Simplify right side
    71,356.32x = 3,630,663,479.14
  5. Step 5: Solve for x
    x = 3,630,663,479.14/71,356.32
  6. Step 6: Final answer
    x = 50,880.76

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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.