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Finding the Fourth Proportional to 56,766.88, 78,330.90 and 32,888.44

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Solution

The fourth proportional to 56,766.88, 78,330.90 and 32,888.44 is: 45,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,766.88 : 78,330.90 = 32,888.44 : x
  2. Step 2: Convert to fraction form
    56,766.88/78,330.90 = 32,888.44/x
  3. Step 3: Cross multiply
    56,766.88x = 78,330.90 × 32,888.44
  4. Step 4: Simplify right side
    56,766.88x = 2,576,181,104.80
  5. Step 5: Solve for x
    x = 2,576,181,104.80/56,766.88
  6. Step 6: Final answer
    x = 45,381.76

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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.