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Finding the Fourth Proportional to 6,943.31, 9,571.79 and 4,950.40

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Solution

The fourth proportional to 6,943.31, 9,571.79 and 4,950.40 is: 6,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,943.31 : 9,571.79 = 4,950.40 : x
  2. Step 2: Convert to fraction form
    6,943.31/9,571.79 = 4,950.40/x
  3. Step 3: Cross multiply
    6,943.31x = 9,571.79 × 4,950.40
  4. Step 4: Simplify right side
    6,943.31x = 47,384,225.52
  5. Step 5: Solve for x
    x = 47,384,225.52/6,943.31
  6. Step 6: Final answer
    x = 6,824.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.