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Finding the Fourth Proportional to 23,607.50, 35,412.87 and 7,812.50

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Solution

The fourth proportional to 23,607.50, 35,412.87 and 7,812.50 is: 11,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,607.50 : 35,412.87 = 7,812.50 : x
  2. Step 2: Convert to fraction form
    23,607.50/35,412.87 = 7,812.50/x
  3. Step 3: Cross multiply
    23,607.50x = 35,412.87 × 7,812.50
  4. Step 4: Simplify right side
    23,607.50x = 276,663,046.88
  5. Step 5: Solve for x
    x = 276,663,046.88/23,607.50
  6. Step 6: Final answer
    x = 11,719.29

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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.