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Finding the Fourth Proportional to 13,655.36, 18,846.02 and 8,350.92

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Solution

The fourth proportional to 13,655.36, 18,846.02 and 8,350.92 is: 11,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.36 : 18,846.02 = 8,350.92 : x
  2. Step 2: Convert to fraction form
    13,655.36/18,846.02 = 8,350.92/x
  3. Step 3: Cross multiply
    13,655.36x = 18,846.02 × 8,350.92
  4. Step 4: Simplify right side
    13,655.36x = 157,381,605.34
  5. Step 5: Solve for x
    x = 157,381,605.34/13,655.36
  6. Step 6: Final answer
    x = 11,525.26

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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.