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Finding the Fourth Proportional to 55,066.80, 76,004.34 and 36,205.68

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Solution

The fourth proportional to 55,066.80, 76,004.34 and 36,205.68 is: 49,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,066.80 : 76,004.34 = 36,205.68 : x
  2. Step 2: Convert to fraction form
    55,066.80/76,004.34 = 36,205.68/x
  3. Step 3: Cross multiply
    55,066.80x = 76,004.34 × 36,205.68
  4. Step 4: Simplify right side
    55,066.80x = 2,751,788,812.65
  5. Step 5: Solve for x
    x = 2,751,788,812.65/55,066.80
  6. Step 6: Final answer
    x = 49,971.83

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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.