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Finding the Fourth Proportional to 70,796.14, 97,699.34 and 38,965.77

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Solution

The fourth proportional to 70,796.14, 97,699.34 and 38,965.77 is: 53,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,796.14 : 97,699.34 = 38,965.77 : x
  2. Step 2: Convert to fraction form
    70,796.14/97,699.34 = 38,965.77/x
  3. Step 3: Cross multiply
    70,796.14x = 97,699.34 × 38,965.77
  4. Step 4: Simplify right side
    70,796.14x = 3,806,930,011.59
  5. Step 5: Solve for x
    x = 3,806,930,011.59/70,796.14
  6. Step 6: Final answer
    x = 53,773.13

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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.