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Finding the Fourth Proportional to 68,243.10, 102,364.65 and 23,855.10

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Solution

The fourth proportional to 68,243.10, 102,364.65 and 23,855.10 is: 35,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,243.10 : 102,364.65 = 23,855.10 : x
  2. Step 2: Convert to fraction form
    68,243.10/102,364.65 = 23,855.10/x
  3. Step 3: Cross multiply
    68,243.10x = 102,364.65 × 23,855.10
  4. Step 4: Simplify right side
    68,243.10x = 2,441,918,962.22
  5. Step 5: Solve for x
    x = 2,441,918,962.22/68,243.10
  6. Step 6: Final answer
    x = 35,782.65

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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.