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Finding the Fourth Proportional to 6,878.01, 9,489.45 and 4,323.30

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Solution

The fourth proportional to 6,878.01, 9,489.45 and 4,323.30 is: 5,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.01 : 9,489.45 = 4,323.30 : x
  2. Step 2: Convert to fraction form
    6,878.01/9,489.45 = 4,323.30/x
  3. Step 3: Cross multiply
    6,878.01x = 9,489.45 × 4,323.30
  4. Step 4: Simplify right side
    6,878.01x = 41,025,739.19
  5. Step 5: Solve for x
    x = 41,025,739.19/6,878.01
  6. Step 6: Final answer
    x = 5,964.77

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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.