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Finding the Fourth Proportional to 69,688.96, 104,533.44 and 22,955.20

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Solution

The fourth proportional to 69,688.96, 104,533.44 and 22,955.20 is: 34,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,688.96 : 104,533.44 = 22,955.20 : x
  2. Step 2: Convert to fraction form
    69,688.96/104,533.44 = 22,955.20/x
  3. Step 3: Cross multiply
    69,688.96x = 104,533.44 × 22,955.20
  4. Step 4: Simplify right side
    69,688.96x = 2,399,586,021.89
  5. Step 5: Solve for x
    x = 2,399,586,021.89/69,688.96
  6. Step 6: Final answer
    x = 34,432.80

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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.