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Finding the Fourth Proportional to 7,323.38, 10,100.72 and 5,303.84

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Solution

The fourth proportional to 7,323.38, 10,100.72 and 5,303.84 is: 7,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.38 : 10,100.72 = 5,303.84 : x
  2. Step 2: Convert to fraction form
    7,323.38/10,100.72 = 5,303.84/x
  3. Step 3: Cross multiply
    7,323.38x = 10,100.72 × 5,303.84
  4. Step 4: Simplify right side
    7,323.38x = 53,572,576.25
  5. Step 5: Solve for x
    x = 53,572,576.25/7,323.38
  6. Step 6: Final answer
    x = 7,315.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.