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Finding the Fourth Proportional to 55,134.60, 82,701.90 and 28,847.40

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Solution

The fourth proportional to 55,134.60, 82,701.90 and 28,847.40 is: 43,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,134.60 : 82,701.90 = 28,847.40 : x
  2. Step 2: Convert to fraction form
    55,134.60/82,701.90 = 28,847.40/x
  3. Step 3: Cross multiply
    55,134.60x = 82,701.90 × 28,847.40
  4. Step 4: Simplify right side
    55,134.60x = 2,385,734,790.06
  5. Step 5: Solve for x
    x = 2,385,734,790.06/55,134.60
  6. Step 6: Final answer
    x = 43,271.10

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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.