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Finding the Fourth Proportional to 29,133.76, 43,700.68 and 12,483

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Solution

The fourth proportional to 29,133.76, 43,700.68 and 12,483 is: 18,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,133.76 : 43,700.68 = 12,483 : x
  2. Step 2: Convert to fraction form
    29,133.76/43,700.68 = 12,483/x
  3. Step 3: Cross multiply
    29,133.76x = 43,700.68 × 12,483
  4. Step 4: Simplify right side
    29,133.76x = 545,515,588.44
  5. Step 5: Solve for x
    x = 545,515,588.44/29,133.76
  6. Step 6: Final answer
    x = 18,724.52

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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.