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Finding the Fourth Proportional to 55,739.75, 83,668.74 and 49,369.68

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Solution

The fourth proportional to 55,739.75, 83,668.74 and 49,369.68 is: 74,106.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,739.75 : 83,668.74 = 49,369.68 : x
  2. Step 2: Convert to fraction form
    55,739.75/83,668.74 = 49,369.68/x
  3. Step 3: Cross multiply
    55,739.75x = 83,668.74 × 49,369.68
  4. Step 4: Simplify right side
    55,739.75x = 4,130,698,919.80
  5. Step 5: Solve for x
    x = 4,130,698,919.80/55,739.75
  6. Step 6: Final answer
    x = 74,106.88

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1.5x scale

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.