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Finding the Fourth Proportional to 12,353.84, 17,048.13 and 6,764.84

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Solution

The fourth proportional to 12,353.84, 17,048.13 and 6,764.84 is: 9,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.84 : 17,048.13 = 6,764.84 : x
  2. Step 2: Convert to fraction form
    12,353.84/17,048.13 = 6,764.84/x
  3. Step 3: Cross multiply
    12,353.84x = 17,048.13 × 6,764.84
  4. Step 4: Simplify right side
    12,353.84x = 115,327,871.75
  5. Step 5: Solve for x
    x = 115,327,871.75/12,353.84
  6. Step 6: Final answer
    x = 9,335.39

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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.