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Finding the Fourth Proportional to 18,393.64, 27,583.97 and 5,909.45

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Solution

The fourth proportional to 18,393.64, 27,583.97 and 5,909.45 is: 8,862.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.64 : 27,583.97 = 5,909.45 : x
  2. Step 2: Convert to fraction form
    18,393.64/27,583.97 = 5,909.45/x
  3. Step 3: Cross multiply
    18,393.64x = 27,583.97 × 5,909.45
  4. Step 4: Simplify right side
    18,393.64x = 163,005,924.05
  5. Step 5: Solve for x
    x = 163,005,924.05/18,393.64
  6. Step 6: Final answer
    x = 8,862.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.