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Finding the Fourth Proportional to 6,943.80, 10,415.70 and 2,326.80

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Solution

The fourth proportional to 6,943.80, 10,415.70 and 2,326.80 is: 3,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,943.80 : 10,415.70 = 2,326.80 : x
  2. Step 2: Convert to fraction form
    6,943.80/10,415.70 = 2,326.80/x
  3. Step 3: Cross multiply
    6,943.80x = 10,415.70 × 2,326.80
  4. Step 4: Simplify right side
    6,943.80x = 24,235,250.76
  5. Step 5: Solve for x
    x = 24,235,250.76/6,943.80
  6. Step 6: Final answer
    x = 3,490.20

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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.