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Finding the Fourth Proportional to 13,492.87, 18,620.26 and 7,524.92

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Solution

The fourth proportional to 13,492.87, 18,620.26 and 7,524.92 is: 10,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.87 : 18,620.26 = 7,524.92 : x
  2. Step 2: Convert to fraction form
    13,492.87/18,620.26 = 7,524.92/x
  3. Step 3: Cross multiply
    13,492.87x = 18,620.26 × 7,524.92
  4. Step 4: Simplify right side
    13,492.87x = 140,115,994.62
  5. Step 5: Solve for x
    x = 140,115,994.62/13,492.87
  6. Step 6: Final answer
    x = 10,384.45

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1.5x scale

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.