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Finding the Fourth Proportional to 68,188.32, 102,280.05 and 23,814.90

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Solution

The fourth proportional to 68,188.32, 102,280.05 and 23,814.90 is: 35,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,188.32 : 102,280.05 = 23,814.90 : x
  2. Step 2: Convert to fraction form
    68,188.32/102,280.05 = 23,814.90/x
  3. Step 3: Cross multiply
    68,188.32x = 102,280.05 × 23,814.90
  4. Step 4: Simplify right side
    68,188.32x = 2,435,789,162.75
  5. Step 5: Solve for x
    x = 2,435,789,162.75/68,188.32
  6. Step 6: Final answer
    x = 35,721.50

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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.