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Finding the Fourth Proportional to 47,459.88, 71,189.64 and 19,373.94

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Solution

The fourth proportional to 47,459.88, 71,189.64 and 19,373.94 is: 29,060.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,459.88 : 71,189.64 = 19,373.94 : x
  2. Step 2: Convert to fraction form
    47,459.88/71,189.64 = 19,373.94/x
  3. Step 3: Cross multiply
    47,459.88x = 71,189.64 × 19,373.94
  4. Step 4: Simplify right side
    47,459.88x = 1,379,223,813.98
  5. Step 5: Solve for x
    x = 1,379,223,813.98/47,459.88
  6. Step 6: Final answer
    x = 29,060.84

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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.