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Finding the Fourth Proportional to 15,173.69, 22,770.78 and 5,313.05

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Solution

The fourth proportional to 15,173.69, 22,770.78 and 5,313.05 is: 7,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.69 : 22,770.78 = 5,313.05 : x
  2. Step 2: Convert to fraction form
    15,173.69/22,770.78 = 5,313.05/x
  3. Step 3: Cross multiply
    15,173.69x = 22,770.78 × 5,313.05
  4. Step 4: Simplify right side
    15,173.69x = 120,982,292.68
  5. Step 5: Solve for x
    x = 120,982,292.68/15,173.69
  6. Step 6: Final answer
    x = 7,973.16

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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.