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Finding the Fourth Proportional to 56,709.91, 85,060.77 and 27,119.80

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Solution

The fourth proportional to 56,709.91, 85,060.77 and 27,119.80 is: 40,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,709.91 : 85,060.77 = 27,119.80 : x
  2. Step 2: Convert to fraction form
    56,709.91/85,060.77 = 27,119.80/x
  3. Step 3: Cross multiply
    56,709.91x = 85,060.77 × 27,119.80
  4. Step 4: Simplify right side
    56,709.91x = 2,306,831,215.10
  5. Step 5: Solve for x
    x = 2,306,831,215.10/56,709.91
  6. Step 6: Final answer
    x = 40,677.74

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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.