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Finding the Fourth Proportional to 30,671.48, 46,009.14 and 12,203

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Solution

The fourth proportional to 30,671.48, 46,009.14 and 12,203 is: 18,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671.48 : 46,009.14 = 12,203 : x
  2. Step 2: Convert to fraction form
    30,671.48/46,009.14 = 12,203/x
  3. Step 3: Cross multiply
    30,671.48x = 46,009.14 × 12,203
  4. Step 4: Simplify right side
    30,671.48x = 561,449,535.42
  5. Step 5: Solve for x
    x = 561,449,535.42/30,671.48
  6. Step 6: Final answer
    x = 18,305.26

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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.