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Finding the Fourth Proportional to 18,390.84, 27,595.36 and 7,297.26

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Solution

The fourth proportional to 18,390.84, 27,595.36 and 7,297.26 is: 10,949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.84 : 27,595.36 = 7,297.26 : x
  2. Step 2: Convert to fraction form
    18,390.84/27,595.36 = 7,297.26/x
  3. Step 3: Cross multiply
    18,390.84x = 27,595.36 × 7,297.26
  4. Step 4: Simplify right side
    18,390.84x = 201,370,516.71
  5. Step 5: Solve for x
    x = 201,370,516.71/18,390.84
  6. Step 6: Final answer
    x = 10,949.50

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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.