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Finding the Fourth Proportional to 70,330.96, 105,469.10 and 25,340.32

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Solution

The fourth proportional to 70,330.96, 105,469.10 and 25,340.32 is: 38,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,330.96 : 105,469.10 = 25,340.32 : x
  2. Step 2: Convert to fraction form
    70,330.96/105,469.10 = 25,340.32/x
  3. Step 3: Cross multiply
    70,330.96x = 105,469.10 × 25,340.32
  4. Step 4: Simplify right side
    70,330.96x = 2,672,620,744.11
  5. Step 5: Solve for x
    x = 2,672,620,744.11/70,330.96
  6. Step 6: Final answer
    x = 38,000.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.