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Finding the Fourth Proportional to 43,860.80, 65,823.60 and 29,064.80

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Solution

The fourth proportional to 43,860.80, 65,823.60 and 29,064.80 is: 43,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,860.80 : 65,823.60 = 29,064.80 : x
  2. Step 2: Convert to fraction form
    43,860.80/65,823.60 = 29,064.80/x
  3. Step 3: Cross multiply
    43,860.80x = 65,823.60 × 29,064.80
  4. Step 4: Simplify right side
    43,860.80x = 1,913,149,769.28
  5. Step 5: Solve for x
    x = 1,913,149,769.28/43,860.80
  6. Step 6: Final answer
    x = 43,618.67

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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.