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Finding the Fourth Proportional to 18,323.42, 27,485.19 and 4,472.42

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Solution

The fourth proportional to 18,323.42, 27,485.19 and 4,472.42 is: 6,708.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.42 : 27,485.19 = 4,472.42 : x
  2. Step 2: Convert to fraction form
    18,323.42/27,485.19 = 4,472.42/x
  3. Step 3: Cross multiply
    18,323.42x = 27,485.19 × 4,472.42
  4. Step 4: Simplify right side
    18,323.42x = 122,925,176.03
  5. Step 5: Solve for x
    x = 122,925,176.03/18,323.42
  6. Step 6: Final answer
    x = 6,708.64

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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.