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Finding the Fourth Proportional to 70,563.69, 97,380.50 and 38,732.31

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Solution

The fourth proportional to 70,563.69, 97,380.50 and 38,732.31 is: 53,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,563.69 : 97,380.50 = 38,732.31 : x
  2. Step 2: Convert to fraction form
    70,563.69/97,380.50 = 38,732.31/x
  3. Step 3: Cross multiply
    70,563.69x = 97,380.50 × 38,732.31
  4. Step 4: Simplify right side
    70,563.69x = 3,771,771,520.29
  5. Step 5: Solve for x
    x = 3,771,771,520.29/70,563.69
  6. Step 6: Final answer
    x = 53,452.02

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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.