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Finding the Fourth Proportional to 47,892.60, 71,838.90 and 16,723.80

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Solution

The fourth proportional to 47,892.60, 71,838.90 and 16,723.80 is: 25,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,892.60 : 71,838.90 = 16,723.80 : x
  2. Step 2: Convert to fraction form
    47,892.60/71,838.90 = 16,723.80/x
  3. Step 3: Cross multiply
    47,892.60x = 71,838.90 × 16,723.80
  4. Step 4: Simplify right side
    47,892.60x = 1,201,419,395.82
  5. Step 5: Solve for x
    x = 1,201,419,395.82/47,892.60
  6. Step 6: Final answer
    x = 25,085.70

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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.