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Finding the Fourth Proportional to 13,363.74, 18,441.68 and 7,313.96

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Solution

The fourth proportional to 13,363.74, 18,441.68 and 7,313.96 is: 10,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.74 : 18,441.68 = 7,313.96 : x
  2. Step 2: Convert to fraction form
    13,363.74/18,441.68 = 7,313.96/x
  3. Step 3: Cross multiply
    13,363.74x = 18,441.68 × 7,313.96
  4. Step 4: Simplify right side
    13,363.74x = 134,881,581.07
  5. Step 5: Solve for x
    x = 134,881,581.07/13,363.74
  6. Step 6: Final answer
    x = 10,093.10

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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.