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Finding the Fourth Proportional to 15,356.11, 23,015.22 and 7,956.31

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Solution

The fourth proportional to 15,356.11, 23,015.22 and 7,956.31 is: 11,924.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356.11 : 23,015.22 = 7,956.31 : x
  2. Step 2: Convert to fraction form
    15,356.11/23,015.22 = 7,956.31/x
  3. Step 3: Cross multiply
    15,356.11x = 23,015.22 × 7,956.31
  4. Step 4: Simplify right side
    15,356.11x = 183,116,225.04
  5. Step 5: Solve for x
    x = 183,116,225.04/15,356.11
  6. Step 6: Final answer
    x = 11,924.65

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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.