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Finding the Fourth Proportional to 9,641.63, 13,305.74 and 5,392.58

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Solution

The fourth proportional to 9,641.63, 13,305.74 and 5,392.58 is: 7,441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,641.63 : 13,305.74 = 5,392.58 : x
  2. Step 2: Convert to fraction form
    9,641.63/13,305.74 = 5,392.58/x
  3. Step 3: Cross multiply
    9,641.63x = 13,305.74 × 5,392.58
  4. Step 4: Simplify right side
    9,641.63x = 71,752,173.92
  5. Step 5: Solve for x
    x = 71,752,173.92/9,641.63
  6. Step 6: Final answer
    x = 7,441.91

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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.