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Finding the Fourth Proportional to 70,503.96, 105,765.99 and 23,122.76

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Solution

The fourth proportional to 70,503.96, 105,765.99 and 23,122.76 is: 34,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,503.96 : 105,765.99 = 23,122.76 : x
  2. Step 2: Convert to fraction form
    70,503.96/105,765.99 = 23,122.76/x
  3. Step 3: Cross multiply
    70,503.96x = 105,765.99 × 23,122.76
  4. Step 4: Simplify right side
    70,503.96x = 2,445,600,987.39
  5. Step 5: Solve for x
    x = 2,445,600,987.39/70,503.96
  6. Step 6: Final answer
    x = 34,687.43

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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.