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Finding the Fourth Proportional to 29,928.76, 44,889.69 and 7,740.43

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Solution

The fourth proportional to 29,928.76, 44,889.69 and 7,740.43 is: 11,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,928.76 : 44,889.69 = 7,740.43 : x
  2. Step 2: Convert to fraction form
    29,928.76/44,889.69 = 7,740.43/x
  3. Step 3: Cross multiply
    29,928.76x = 44,889.69 × 7,740.43
  4. Step 4: Simplify right side
    29,928.76x = 347,465,419.97
  5. Step 5: Solve for x
    x = 347,465,419.97/29,928.76
  6. Step 6: Final answer
    x = 11,609.75

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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.