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Finding the Fourth Proportional to 15,955.61, 23,933.42 and 7,180.28

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Solution

The fourth proportional to 15,955.61, 23,933.42 and 7,180.28 is: 10,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.61 : 23,933.42 = 7,180.28 : x
  2. Step 2: Convert to fraction form
    15,955.61/23,933.42 = 7,180.28/x
  3. Step 3: Cross multiply
    15,955.61x = 23,933.42 × 7,180.28
  4. Step 4: Simplify right side
    15,955.61x = 171,848,656.96
  5. Step 5: Solve for x
    x = 171,848,656.96/15,955.61
  6. Step 6: Final answer
    x = 10,770.42

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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.