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Finding the Fourth Proportional to 57,279.50, 85,926.27 and 17,830.34

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Solution

The fourth proportional to 57,279.50, 85,926.27 and 17,830.34 is: 26,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279.50 : 85,926.27 = 17,830.34 : x
  2. Step 2: Convert to fraction form
    57,279.50/85,926.27 = 17,830.34/x
  3. Step 3: Cross multiply
    57,279.50x = 85,926.27 × 17,830.34
  4. Step 4: Simplify right side
    57,279.50x = 1,532,094,609.03
  5. Step 5: Solve for x
    x = 1,532,094,609.03/57,279.50
  6. Step 6: Final answer
    x = 26,747.70

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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.