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Finding the Fourth Proportional to 55,203, 76,180.32 and 30,052.68

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Solution

The fourth proportional to 55,203, 76,180.32 and 30,052.68 is: 41,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,203 : 76,180.32 = 30,052.68 : x
  2. Step 2: Convert to fraction form
    55,203/76,180.32 = 30,052.68/x
  3. Step 3: Cross multiply
    55,203x = 76,180.32 × 30,052.68
  4. Step 4: Simplify right side
    55,203x = 2,289,422,779.26
  5. Step 5: Solve for x
    x = 2,289,422,779.26/55,203
  6. Step 6: Final answer
    x = 41,472.80

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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.