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Finding the Fourth Proportional to 56,676.32, 85,018.80 and 17,236.80

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Solution

The fourth proportional to 56,676.32, 85,018.80 and 17,236.80 is: 25,856.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,676.32 : 85,018.80 = 17,236.80 : x
  2. Step 2: Convert to fraction form
    56,676.32/85,018.80 = 17,236.80/x
  3. Step 3: Cross multiply
    56,676.32x = 85,018.80 × 17,236.80
  4. Step 4: Simplify right side
    56,676.32x = 1,465,452,051.84
  5. Step 5: Solve for x
    x = 1,465,452,051.84/56,676.32
  6. Step 6: Final answer
    x = 25,856.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.