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Finding the Fourth Proportional to 12,798.69, 19,186.35 and 10,836.96

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Solution

The fourth proportional to 12,798.69, 19,186.35 and 10,836.96 is: 16,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.69 : 19,186.35 = 10,836.96 : x
  2. Step 2: Convert to fraction form
    12,798.69/19,186.35 = 10,836.96/x
  3. Step 3: Cross multiply
    12,798.69x = 19,186.35 × 10,836.96
  4. Step 4: Simplify right side
    12,798.69x = 207,921,707.50
  5. Step 5: Solve for x
    x = 207,921,707.50/12,798.69
  6. Step 6: Final answer
    x = 16,245.55

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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.