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Finding the Fourth Proportional to 70,889.22, 97,692.59 and 50,711.11

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Solution

The fourth proportional to 70,889.22, 97,692.59 and 50,711.11 is: 69,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,889.22 : 97,692.59 = 50,711.11 : x
  2. Step 2: Convert to fraction form
    70,889.22/97,692.59 = 50,711.11/x
  3. Step 3: Cross multiply
    70,889.22x = 97,692.59 × 50,711.11
  4. Step 4: Simplify right side
    70,889.22x = 4,954,099,560.22
  5. Step 5: Solve for x
    x = 4,954,099,560.22/70,889.22
  6. Step 6: Final answer
    x = 69,885.09

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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.