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Finding the Fourth Proportional to 67,295.50, 100,943.26 and 18,047.50

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Solution

The fourth proportional to 67,295.50, 100,943.26 and 18,047.50 is: 27,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,295.50 : 100,943.26 = 18,047.50 : x
  2. Step 2: Convert to fraction form
    67,295.50/100,943.26 = 18,047.50/x
  3. Step 3: Cross multiply
    67,295.50x = 100,943.26 × 18,047.50
  4. Step 4: Simplify right side
    67,295.50x = 1,821,773,484.85
  5. Step 5: Solve for x
    x = 1,821,773,484.85/67,295.50
  6. Step 6: Final answer
    x = 27,071.25

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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.