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Finding the Fourth Proportional to 8,470.44, 11,689.18 and 4,744.44

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Solution

The fourth proportional to 8,470.44, 11,689.18 and 4,744.44 is: 6,547.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.44 : 11,689.18 = 4,744.44 : x
  2. Step 2: Convert to fraction form
    8,470.44/11,689.18 = 4,744.44/x
  3. Step 3: Cross multiply
    8,470.44x = 11,689.18 × 4,744.44
  4. Step 4: Simplify right side
    8,470.44x = 55,458,601.30
  5. Step 5: Solve for x
    x = 55,458,601.30/8,470.44
  6. Step 6: Final answer
    x = 6,547.31

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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.