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Finding the Fourth Proportional to 68,515.94, 102,698.84 and 35,237.76

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Solution

The fourth proportional to 68,515.94, 102,698.84 and 35,237.76 is: 52,818.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,515.94 : 102,698.84 = 35,237.76 : x
  2. Step 2: Convert to fraction form
    68,515.94/102,698.84 = 35,237.76/x
  3. Step 3: Cross multiply
    68,515.94x = 102,698.84 × 35,237.76
  4. Step 4: Simplify right side
    68,515.94x = 3,618,876,900.01
  5. Step 5: Solve for x
    x = 3,618,876,900.01/68,515.94
  6. Step 6: Final answer
    x = 52,818.03

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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.