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Finding the Fourth Proportional to 55,740.51, 76,919.10 and 33,080.46

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Solution

The fourth proportional to 55,740.51, 76,919.10 and 33,080.46 is: 45,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,740.51 : 76,919.10 = 33,080.46 : x
  2. Step 2: Convert to fraction form
    55,740.51/76,919.10 = 33,080.46/x
  3. Step 3: Cross multiply
    55,740.51x = 76,919.10 × 33,080.46
  4. Step 4: Simplify right side
    55,740.51x = 2,544,519,210.79
  5. Step 5: Solve for x
    x = 2,544,519,210.79/55,740.51
  6. Step 6: Final answer
    x = 45,649.37

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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.