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Finding the Fourth Proportional to 13,104.65, 18,110.12 and 11,646.65

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Solution

The fourth proportional to 13,104.65, 18,110.12 and 11,646.65 is: 16,095.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.65 : 18,110.12 = 11,646.65 : x
  2. Step 2: Convert to fraction form
    13,104.65/18,110.12 = 11,646.65/x
  3. Step 3: Cross multiply
    13,104.65x = 18,110.12 × 11,646.65
  4. Step 4: Simplify right side
    13,104.65x = 210,922,216.14
  5. Step 5: Solve for x
    x = 210,922,216.14/13,104.65
  6. Step 6: Final answer
    x = 16,095.22

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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.