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Finding the Fourth Proportional to 70,205.75, 96,883.89 and 38,374.64

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Solution

The fourth proportional to 70,205.75, 96,883.89 and 38,374.64 is: 52,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,205.75 : 96,883.89 = 38,374.64 : x
  2. Step 2: Convert to fraction form
    70,205.75/96,883.89 = 38,374.64/x
  3. Step 3: Cross multiply
    70,205.75x = 96,883.89 × 38,374.64
  4. Step 4: Simplify right side
    70,205.75x = 3,717,884,400.55
  5. Step 5: Solve for x
    x = 3,717,884,400.55/70,205.75
  6. Step 6: Final answer
    x = 52,956.98

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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.