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Finding the Fourth Proportional to 58,609.80, 80,880.93 and 31,750.65

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Solution

The fourth proportional to 58,609.80, 80,880.93 and 31,750.65 is: 43,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,609.80 : 80,880.93 = 31,750.65 : x
  2. Step 2: Convert to fraction form
    58,609.80/80,880.93 = 31,750.65/x
  3. Step 3: Cross multiply
    58,609.80x = 80,880.93 × 31,750.65
  4. Step 4: Simplify right side
    58,609.80x = 2,568,022,100.10
  5. Step 5: Solve for x
    x = 2,568,022,100.10/58,609.80
  6. Step 6: Final answer
    x = 43,815.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.