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Finding the Fourth Proportional to 5,970.94, 8,239.95 and 3,318.40

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Solution

The fourth proportional to 5,970.94, 8,239.95 and 3,318.40 is: 4,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,970.94 : 8,239.95 = 3,318.40 : x
  2. Step 2: Convert to fraction form
    5,970.94/8,239.95 = 3,318.40/x
  3. Step 3: Cross multiply
    5,970.94x = 8,239.95 × 3,318.40
  4. Step 4: Simplify right side
    5,970.94x = 27,343,450.08
  5. Step 5: Solve for x
    x = 27,343,450.08/5,970.94
  6. Step 6: Final answer
    x = 4,579.42

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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.