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Finding the Fourth Proportional to 13,047.84, 18,007.56 and 7,305.84

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Solution

The fourth proportional to 13,047.84, 18,007.56 and 7,305.84 is: 10,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.84 : 18,007.56 = 7,305.84 : x
  2. Step 2: Convert to fraction form
    13,047.84/18,007.56 = 7,305.84/x
  3. Step 3: Cross multiply
    13,047.84x = 18,007.56 × 7,305.84
  4. Step 4: Simplify right side
    13,047.84x = 131,560,352.15
  5. Step 5: Solve for x
    x = 131,560,352.15/13,047.84
  6. Step 6: Final answer
    x = 10,082.92

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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.