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Finding the Fourth Proportional to 9,578.79, 14,376.39 and 7,328.00

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Solution

The fourth proportional to 9,578.79, 14,376.39 and 7,328.00 is: 10,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.79 : 14,376.39 = 7,328.00 : x
  2. Step 2: Convert to fraction form
    9,578.79/14,376.39 = 7,328.00/x
  3. Step 3: Cross multiply
    9,578.79x = 14,376.39 × 7,328.00
  4. Step 4: Simplify right side
    9,578.79x = 105,350,194.38
  5. Step 5: Solve for x
    x = 105,350,194.38/9,578.79
  6. Step 6: Final answer
    x = 10,998.28

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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.