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Finding the Fourth Proportional to 10,992.09, 16,492.74 and 4,748.89

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Solution

The fourth proportional to 10,992.09, 16,492.74 and 4,748.89 is: 7,125.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.09 : 16,492.74 = 4,748.89 : x
  2. Step 2: Convert to fraction form
    10,992.09/16,492.74 = 4,748.89/x
  3. Step 3: Cross multiply
    10,992.09x = 16,492.74 × 4,748.89
  4. Step 4: Simplify right side
    10,992.09x = 78,322,208.06
  5. Step 5: Solve for x
    x = 78,322,208.06/10,992.09
  6. Step 6: Final answer
    x = 7,125.32

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1.5x scale

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.