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Finding the Fourth Proportional to 70,305.87, 97,021.84 and 38,040.39

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Solution

The fourth proportional to 70,305.87, 97,021.84 and 38,040.39 is: 52,495.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,305.87 : 97,021.84 = 38,040.39 : x
  2. Step 2: Convert to fraction form
    70,305.87/97,021.84 = 38,040.39/x
  3. Step 3: Cross multiply
    70,305.87x = 97,021.84 × 38,040.39
  4. Step 4: Simplify right side
    70,305.87x = 3,690,747,956.81
  5. Step 5: Solve for x
    x = 3,690,747,956.81/70,305.87
  6. Step 6: Final answer
    x = 52,495.59

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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.