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Finding the Fourth Proportional to 55,076.44, 76,005.48 and 32,720.44

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Solution

The fourth proportional to 55,076.44, 76,005.48 and 32,720.44 is: 45,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,076.44 : 76,005.48 = 32,720.44 : x
  2. Step 2: Convert to fraction form
    55,076.44/76,005.48 = 32,720.44/x
  3. Step 3: Cross multiply
    55,076.44x = 76,005.48 × 32,720.44
  4. Step 4: Simplify right side
    55,076.44x = 2,486,932,748.01
  5. Step 5: Solve for x
    x = 2,486,932,748.01/55,076.44
  6. Step 6: Final answer
    x = 45,154.20

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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.