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Finding the Fourth Proportional to 47,492.91, 71,237.97 and 19,404.99

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Solution

The fourth proportional to 47,492.91, 71,237.97 and 19,404.99 is: 29,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,492.91 : 71,237.97 = 19,404.99 : x
  2. Step 2: Convert to fraction form
    47,492.91/71,237.97 = 19,404.99/x
  3. Step 3: Cross multiply
    47,492.91x = 71,237.97 × 19,404.99
  4. Step 4: Simplify right side
    47,492.91x = 1,382,372,095.47
  5. Step 5: Solve for x
    x = 1,382,372,095.47/47,492.91
  6. Step 6: Final answer
    x = 29,106.92

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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.