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Finding the Fourth Proportional to 38,374.50, 57,564.99 and 10,672.50

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Solution

The fourth proportional to 38,374.50, 57,564.99 and 10,672.50 is: 16,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,374.50 : 57,564.99 = 10,672.50 : x
  2. Step 2: Convert to fraction form
    38,374.50/57,564.99 = 10,672.50/x
  3. Step 3: Cross multiply
    38,374.50x = 57,564.99 × 10,672.50
  4. Step 4: Simplify right side
    38,374.50x = 614,362,355.78
  5. Step 5: Solve for x
    x = 614,362,355.78/38,374.50
  6. Step 6: Final answer
    x = 16,009.65

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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.