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Finding the Fourth Proportional to 18,323.42, 27,488.77 and 7,235.33

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Solution

The fourth proportional to 18,323.42, 27,488.77 and 7,235.33 is: 10,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.42 : 27,488.77 = 7,235.33 : x
  2. Step 2: Convert to fraction form
    18,323.42/27,488.77 = 7,235.33/x
  3. Step 3: Cross multiply
    18,323.42x = 27,488.77 × 7,235.33
  4. Step 4: Simplify right side
    18,323.42x = 198,890,166.71
  5. Step 5: Solve for x
    x = 198,890,166.71/18,323.42
  6. Step 6: Final answer
    x = 10,854.43

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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.