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Finding the Fourth Proportional to 70,794.21, 97,692.30 and 38,956.98

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Solution

The fourth proportional to 70,794.21, 97,692.30 and 38,956.98 is: 53,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,794.21 : 97,692.30 = 38,956.98 : x
  2. Step 2: Convert to fraction form
    70,794.21/97,692.30 = 38,956.98/x
  3. Step 3: Cross multiply
    70,794.21x = 97,692.30 × 38,956.98
  4. Step 4: Simplify right side
    70,794.21x = 3,805,796,977.25
  5. Step 5: Solve for x
    x = 3,805,796,977.25/70,794.21
  6. Step 6: Final answer
    x = 53,758.59

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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.