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Finding the Fourth Proportional to 71,483.60, 107,226.30 and 18,892.62

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Solution

The fourth proportional to 71,483.60, 107,226.30 and 18,892.62 is: 28,339.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,483.60 : 107,226.30 = 18,892.62 : x
  2. Step 2: Convert to fraction form
    71,483.60/107,226.30 = 18,892.62/x
  3. Step 3: Cross multiply
    71,483.60x = 107,226.30 × 18,892.62
  4. Step 4: Simplify right side
    71,483.60x = 2,025,785,739.91
  5. Step 5: Solve for x
    x = 2,025,785,739.91/71,483.60
  6. Step 6: Final answer
    x = 28,339.17

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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.