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Finding the Fourth Proportional to 26,492.87, 39,728.87 and 9,621.89

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Solution

The fourth proportional to 26,492.87, 39,728.87 and 9,621.89 is: 14,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,492.87 : 39,728.87 = 9,621.89 : x
  2. Step 2: Convert to fraction form
    26,492.87/39,728.87 = 9,621.89/x
  3. Step 3: Cross multiply
    26,492.87x = 39,728.87 × 9,621.89
  4. Step 4: Simplify right side
    26,492.87x = 382,266,570.21
  5. Step 5: Solve for x
    x = 382,266,570.21/26,492.87
  6. Step 6: Final answer
    x = 14,429.04

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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.