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Finding the Fourth Proportional to 58,409.64, 87,576.12 and 28,846.80

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Solution

The fourth proportional to 58,409.64, 87,576.12 and 28,846.80 is: 43,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,409.64 : 87,576.12 = 28,846.80 : x
  2. Step 2: Convert to fraction form
    58,409.64/87,576.12 = 28,846.80/x
  3. Step 3: Cross multiply
    58,409.64x = 87,576.12 × 28,846.80
  4. Step 4: Simplify right side
    58,409.64x = 2,526,290,818.42
  5. Step 5: Solve for x
    x = 2,526,290,818.42/58,409.64
  6. Step 6: Final answer
    x = 43,251.27

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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.