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Finding the Fourth Proportional to 76,846.19, 115,272.80 and 28,826.27

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Solution

The fourth proportional to 76,846.19, 115,272.80 and 28,826.27 is: 43,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,846.19 : 115,272.80 = 28,826.27 : x
  2. Step 2: Convert to fraction form
    76,846.19/115,272.80 = 28,826.27/x
  3. Step 3: Cross multiply
    76,846.19x = 115,272.80 × 28,826.27
  4. Step 4: Simplify right side
    76,846.19x = 3,322,884,352.16
  5. Step 5: Solve for x
    x = 3,322,884,352.16/76,846.19
  6. Step 6: Final answer
    x = 43,240.72

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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.