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Finding the Fourth Proportional to 70,074.99, 96,705.54 and 38,245.95

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Solution

The fourth proportional to 70,074.99, 96,705.54 and 38,245.95 is: 52,780.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,074.99 : 96,705.54 = 38,245.95 : x
  2. Step 2: Convert to fraction form
    70,074.99/96,705.54 = 38,245.95/x
  3. Step 3: Cross multiply
    70,074.99x = 96,705.54 × 38,245.95
  4. Step 4: Simplify right side
    70,074.99x = 3,698,595,247.56
  5. Step 5: Solve for x
    x = 3,698,595,247.56/70,074.99
  6. Step 6: Final answer
    x = 52,780.53

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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.