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Finding the Fourth Proportional to 7,328.51, 10,995.19 and 4,872.99

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Solution

The fourth proportional to 7,328.51, 10,995.19 and 4,872.99 is: 7,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.51 : 10,995.19 = 4,872.99 : x
  2. Step 2: Convert to fraction form
    7,328.51/10,995.19 = 4,872.99/x
  3. Step 3: Cross multiply
    7,328.51x = 10,995.19 × 4,872.99
  4. Step 4: Simplify right side
    7,328.51x = 53,579,438.74
  5. Step 5: Solve for x
    x = 53,579,438.74/7,328.51
  6. Step 6: Final answer
    x = 7,311.10

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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.