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Finding the Fourth Proportional to 30,748.88, 46,123.35 and 8,562.31

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Solution

The fourth proportional to 30,748.88, 46,123.35 and 8,562.31 is: 12,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,748.88 : 46,123.35 = 8,562.31 : x
  2. Step 2: Convert to fraction form
    30,748.88/46,123.35 = 8,562.31/x
  3. Step 3: Cross multiply
    30,748.88x = 46,123.35 × 8,562.31
  4. Step 4: Simplify right side
    30,748.88x = 394,922,190.32
  5. Step 5: Solve for x
    x = 394,922,190.32/30,748.88
  6. Step 6: Final answer
    x = 12,843.47

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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.