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Finding the Fourth Proportional to 19,383.84, 29,080.17 and 6,905.18

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Solution

The fourth proportional to 19,383.84, 29,080.17 and 6,905.18 is: 10,359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,383.84 : 29,080.17 = 6,905.18 : x
  2. Step 2: Convert to fraction form
    19,383.84/29,080.17 = 6,905.18/x
  3. Step 3: Cross multiply
    19,383.84x = 29,080.17 × 6,905.18
  4. Step 4: Simplify right side
    19,383.84x = 200,803,880.98
  5. Step 5: Solve for x
    x = 200,803,880.98/19,383.84
  6. Step 6: Final answer
    x = 10,359.34

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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.