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Finding the Fourth Proportional to 70,515.60, 105,770.40 and 23,768.40

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Solution

The fourth proportional to 70,515.60, 105,770.40 and 23,768.40 is: 35,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.60 : 105,770.40 = 23,768.40 : x
  2. Step 2: Convert to fraction form
    70,515.60/105,770.40 = 23,768.40/x
  3. Step 3: Cross multiply
    70,515.60x = 105,770.40 × 23,768.40
  4. Step 4: Simplify right side
    70,515.60x = 2,513,993,175.36
  5. Step 5: Solve for x
    x = 2,513,993,175.36/70,515.60
  6. Step 6: Final answer
    x = 35,651.59

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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.