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Finding the Fourth Proportional to 9,572.84, 14,388.54 and 7,939.88

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Solution

The fourth proportional to 9,572.84, 14,388.54 and 7,939.88 is: 11,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,572.84 : 14,388.54 = 7,939.88 : x
  2. Step 2: Convert to fraction form
    9,572.84/14,388.54 = 7,939.88/x
  3. Step 3: Cross multiply
    9,572.84x = 14,388.54 × 7,939.88
  4. Step 4: Simplify right side
    9,572.84x = 114,243,280.98
  5. Step 5: Solve for x
    x = 114,243,280.98/9,572.84
  6. Step 6: Final answer
    x = 11,934.11

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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.