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Finding the Fourth Proportional to 56,992.50, 78,647.52 and 32,797.20

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Solution

The fourth proportional to 56,992.50, 78,647.52 and 32,797.20 is: 45,258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,992.50 : 78,647.52 = 32,797.20 : x
  2. Step 2: Convert to fraction form
    56,992.50/78,647.52 = 32,797.20/x
  3. Step 3: Cross multiply
    56,992.50x = 78,647.52 × 32,797.20
  4. Step 4: Simplify right side
    56,992.50x = 2,579,418,442.94
  5. Step 5: Solve for x
    x = 2,579,418,442.94/56,992.50
  6. Step 6: Final answer
    x = 45,258.91

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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.