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Finding the Fourth Proportional to 18,473, 25,492.74 and 11,860.52

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Solution

The fourth proportional to 18,473, 25,492.74 and 11,860.52 is: 16,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473 : 25,492.74 = 11,860.52 : x
  2. Step 2: Convert to fraction form
    18,473/25,492.74 = 11,860.52/x
  3. Step 3: Cross multiply
    18,473x = 25,492.74 × 11,860.52
  4. Step 4: Simplify right side
    18,473x = 302,357,152.62
  5. Step 5: Solve for x
    x = 302,357,152.62/18,473
  6. Step 6: Final answer
    x = 16,367.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.