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Finding the Fourth Proportional to 57,549.85, 79,422.78 and 34,889.80

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Solution

The fourth proportional to 57,549.85, 79,422.78 and 34,889.80 is: 48,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,549.85 : 79,422.78 = 34,889.80 : x
  2. Step 2: Convert to fraction form
    57,549.85/79,422.78 = 34,889.80/x
  3. Step 3: Cross multiply
    57,549.85x = 79,422.78 × 34,889.80
  4. Step 4: Simplify right side
    57,549.85x = 2,771,044,909.64
  5. Step 5: Solve for x
    x = 2,771,044,909.64/57,549.85
  6. Step 6: Final answer
    x = 48,150.34

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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.