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Finding the Fourth Proportional to 52,492.48, 78,715.62 and 19,203.91

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Solution

The fourth proportional to 52,492.48, 78,715.62 and 19,203.91 is: 28,797.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,492.48 : 78,715.62 = 19,203.91 : x
  2. Step 2: Convert to fraction form
    52,492.48/78,715.62 = 19,203.91/x
  3. Step 3: Cross multiply
    52,492.48x = 78,715.62 × 19,203.91
  4. Step 4: Simplify right side
    52,492.48x = 1,511,647,682.07
  5. Step 5: Solve for x
    x = 1,511,647,682.07/52,492.48
  6. Step 6: Final answer
    x = 28,797.41

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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.