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Finding the Fourth Proportional to 13,297.84, 18,350.93 and 7,329.51

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Solution

The fourth proportional to 13,297.84, 18,350.93 and 7,329.51 is: 10,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.84 : 18,350.93 = 7,329.51 : x
  2. Step 2: Convert to fraction form
    13,297.84/18,350.93 = 7,329.51/x
  3. Step 3: Cross multiply
    13,297.84x = 18,350.93 × 7,329.51
  4. Step 4: Simplify right side
    13,297.84x = 134,503,288.30
  5. Step 5: Solve for x
    x = 134,503,288.30/13,297.84
  6. Step 6: Final answer
    x = 10,114.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.