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Finding the Fourth Proportional to 52,582.60, 78,873.90 and 31,846.60

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Solution

The fourth proportional to 52,582.60, 78,873.90 and 31,846.60 is: 47,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,582.60 : 78,873.90 = 31,846.60 : x
  2. Step 2: Convert to fraction form
    52,582.60/78,873.90 = 31,846.60/x
  3. Step 3: Cross multiply
    52,582.60x = 78,873.90 × 31,846.60
  4. Step 4: Simplify right side
    52,582.60x = 2,511,865,543.74
  5. Step 5: Solve for x
    x = 2,511,865,543.74/52,582.60
  6. Step 6: Final answer
    x = 47,769.90

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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.