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Finding the Fourth Proportional to 68,922.80, 96,688.75 and 68,922.80

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Solution

The fourth proportional to 68,922.80, 96,688.75 and 68,922.80 is: 96,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,922.80 : 96,688.75 = 68,922.80 : x
  2. Step 2: Convert to fraction form
    68,922.80/96,688.75 = 68,922.80/x
  3. Step 3: Cross multiply
    68,922.80x = 96,688.75 × 68,922.80
  4. Step 4: Simplify right side
    68,922.80x = 6,664,059,378.50
  5. Step 5: Solve for x
    x = 6,664,059,378.50/68,922.80
  6. Step 6: Final answer
    x = 96,688.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.