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Finding the Fourth Proportional to 18,349.60, 27,502.80 and 13,727.20

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Solution

The fourth proportional to 18,349.60, 27,502.80 and 13,727.20 is: 20,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.60 : 27,502.80 = 13,727.20 : x
  2. Step 2: Convert to fraction form
    18,349.60/27,502.80 = 13,727.20/x
  3. Step 3: Cross multiply
    18,349.60x = 27,502.80 × 13,727.20
  4. Step 4: Simplify right side
    18,349.60x = 377,536,436.16
  5. Step 5: Solve for x
    x = 377,536,436.16/18,349.60
  6. Step 6: Final answer
    x = 20,574.64

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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.