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Finding the Fourth Proportional to 26,895.20, 40,342.80 and 9,359.20

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Solution

The fourth proportional to 26,895.20, 40,342.80 and 9,359.20 is: 14,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,895.20 : 40,342.80 = 9,359.20 : x
  2. Step 2: Convert to fraction form
    26,895.20/40,342.80 = 9,359.20/x
  3. Step 3: Cross multiply
    26,895.20x = 40,342.80 × 9,359.20
  4. Step 4: Simplify right side
    26,895.20x = 377,576,333.76
  5. Step 5: Solve for x
    x = 377,576,333.76/26,895.20
  6. Step 6: Final answer
    x = 14,038.80

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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.