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Finding the Fourth Proportional to 9,555, 13,185.99 and 5,363.34

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Solution

The fourth proportional to 9,555, 13,185.99 and 5,363.34 is: 7,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555 : 13,185.99 = 5,363.34 : x
  2. Step 2: Convert to fraction form
    9,555/13,185.99 = 5,363.34/x
  3. Step 3: Cross multiply
    9,555x = 13,185.99 × 5,363.34
  4. Step 4: Simplify right side
    9,555x = 70,720,947.61
  5. Step 5: Solve for x
    x = 70,720,947.61/9,555
  6. Step 6: Final answer
    x = 7,401.46

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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.