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Finding the Fourth Proportional to 55,767.88, 76,971.54 and 33,424.84

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Solution

The fourth proportional to 55,767.88, 76,971.54 and 33,424.84 is: 46,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,767.88 : 76,971.54 = 33,424.84 : x
  2. Step 2: Convert to fraction form
    55,767.88/76,971.54 = 33,424.84/x
  3. Step 3: Cross multiply
    55,767.88x = 76,971.54 × 33,424.84
  4. Step 4: Simplify right side
    55,767.88x = 2,572,761,409.05
  5. Step 5: Solve for x
    x = 2,572,761,409.05/55,767.88
  6. Step 6: Final answer
    x = 46,133.39

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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.