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Finding the Fourth Proportional to 70,596.90, 105,883.20 and 26,200.80

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Solution

The fourth proportional to 70,596.90, 105,883.20 and 26,200.80 is: 39,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,596.90 : 105,883.20 = 26,200.80 : x
  2. Step 2: Convert to fraction form
    70,596.90/105,883.20 = 26,200.80/x
  3. Step 3: Cross multiply
    70,596.90x = 105,883.20 × 26,200.80
  4. Step 4: Simplify right side
    70,596.90x = 2,774,224,546.56
  5. Step 5: Solve for x
    x = 2,774,224,546.56/70,596.90
  6. Step 6: Final answer
    x = 39,296.69

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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.