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Finding the Fourth Proportional to 56,104.70, 77,452.54 and 34,890.80

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Solution

The fourth proportional to 56,104.70, 77,452.54 and 34,890.80 is: 48,166.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,104.70 : 77,452.54 = 34,890.80 : x
  2. Step 2: Convert to fraction form
    56,104.70/77,452.54 = 34,890.80/x
  3. Step 3: Cross multiply
    56,104.70x = 77,452.54 × 34,890.80
  4. Step 4: Simplify right side
    56,104.70x = 2,702,380,608.14
  5. Step 5: Solve for x
    x = 2,702,380,608.14/56,104.70
  6. Step 6: Final answer
    x = 48,166.75

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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.