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Finding the Fourth Proportional to 29,187.34, 43,798.71 and 11,655.70

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Solution

The fourth proportional to 29,187.34, 43,798.71 and 11,655.70 is: 17,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,187.34 : 43,798.71 = 11,655.70 : x
  2. Step 2: Convert to fraction form
    29,187.34/43,798.71 = 11,655.70/x
  3. Step 3: Cross multiply
    29,187.34x = 43,798.71 × 11,655.70
  4. Step 4: Simplify right side
    29,187.34x = 510,504,624.15
  5. Step 5: Solve for x
    x = 510,504,624.15/29,187.34
  6. Step 6: Final answer
    x = 17,490.62

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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.