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Finding the Fourth Proportional to 14,119.84, 19,485.57 and 7,747.03

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Solution

The fourth proportional to 14,119.84, 19,485.57 and 7,747.03 is: 10,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.84 : 19,485.57 = 7,747.03 : x
  2. Step 2: Convert to fraction form
    14,119.84/19,485.57 = 7,747.03/x
  3. Step 3: Cross multiply
    14,119.84x = 19,485.57 × 7,747.03
  4. Step 4: Simplify right side
    14,119.84x = 150,955,295.36
  5. Step 5: Solve for x
    x = 150,955,295.36/14,119.84
  6. Step 6: Final answer
    x = 10,691.01

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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.