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Finding the Fourth Proportional to 70,725.76, 97,597.92 and 38,893.84

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Solution

The fourth proportional to 70,725.76, 97,597.92 and 38,893.84 is: 53,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,725.76 : 97,597.92 = 38,893.84 : x
  2. Step 2: Convert to fraction form
    70,725.76/97,597.92 = 38,893.84/x
  3. Step 3: Cross multiply
    70,725.76x = 97,597.92 × 38,893.84
  4. Step 4: Simplify right side
    70,725.76x = 3,795,957,884.81
  5. Step 5: Solve for x
    x = 3,795,957,884.81/70,725.76
  6. Step 6: Final answer
    x = 53,671.50

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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.