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Finding the Fourth Proportional to 53,697.60, 80,467.20 and 38,937.60

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Solution

The fourth proportional to 53,697.60, 80,467.20 and 38,937.60 is: 58,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,697.60 : 80,467.20 = 38,937.60 : x
  2. Step 2: Convert to fraction form
    53,697.60/80,467.20 = 38,937.60/x
  3. Step 3: Cross multiply
    53,697.60x = 80,467.20 × 38,937.60
  4. Step 4: Simplify right side
    53,697.60x = 3,133,199,646.72
  5. Step 5: Solve for x
    x = 3,133,199,646.72/53,697.60
  6. Step 6: Final answer
    x = 58,348.97

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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.