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Finding the Fourth Proportional to 70,755.75, 97,640.98 and 38,924.64

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Solution

The fourth proportional to 70,755.75, 97,640.98 and 38,924.64 is: 53,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,755.75 : 97,640.98 = 38,924.64 : x
  2. Step 2: Convert to fraction form
    70,755.75/97,640.98 = 38,924.64/x
  3. Step 3: Cross multiply
    70,755.75x = 97,640.98 × 38,924.64
  4. Step 4: Simplify right side
    70,755.75x = 3,800,639,898.44
  5. Step 5: Solve for x
    x = 3,800,639,898.44/70,755.75
  6. Step 6: Final answer
    x = 53,714.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.