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Finding the Fourth Proportional to 67,212.50, 100,818.75 and 23,436.50

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Solution

The fourth proportional to 67,212.50, 100,818.75 and 23,436.50 is: 35,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,212.50 : 100,818.75 = 23,436.50 : x
  2. Step 2: Convert to fraction form
    67,212.50/100,818.75 = 23,436.50/x
  3. Step 3: Cross multiply
    67,212.50x = 100,818.75 × 23,436.50
  4. Step 4: Simplify right side
    67,212.50x = 2,362,838,634.38
  5. Step 5: Solve for x
    x = 2,362,838,634.38/67,212.50
  6. Step 6: Final answer
    x = 35,154.75

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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.