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Finding the Fourth Proportional to 6,827.94, 9,421.53 and 3,843.60

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Solution

The fourth proportional to 6,827.94, 9,421.53 and 3,843.60 is: 5,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,827.94 : 9,421.53 = 3,843.60 : x
  2. Step 2: Convert to fraction form
    6,827.94/9,421.53 = 3,843.60/x
  3. Step 3: Cross multiply
    6,827.94x = 9,421.53 × 3,843.60
  4. Step 4: Simplify right side
    6,827.94x = 36,212,592.71
  5. Step 5: Solve for x
    x = 36,212,592.71/6,827.94
  6. Step 6: Final answer
    x = 5,303.59

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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.