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Finding the Fourth Proportional to 70,850.34, 97,773.30 and 39,022.20

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Solution

The fourth proportional to 70,850.34, 97,773.30 and 39,022.20 is: 53,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,850.34 : 97,773.30 = 39,022.20 : x
  2. Step 2: Convert to fraction form
    70,850.34/97,773.30 = 39,022.20/x
  3. Step 3: Cross multiply
    70,850.34x = 97,773.30 × 39,022.20
  4. Step 4: Simplify right side
    70,850.34x = 3,815,329,267.26
  5. Step 5: Solve for x
    x = 3,815,329,267.26/70,850.34
  6. Step 6: Final answer
    x = 53,850.54

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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.