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Finding the Fourth Proportional to 9,364.68, 12,923.28 and 5,173.20

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Solution

The fourth proportional to 9,364.68, 12,923.28 and 5,173.20 is: 7,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.68 : 12,923.28 = 5,173.20 : x
  2. Step 2: Convert to fraction form
    9,364.68/12,923.28 = 5,173.20/x
  3. Step 3: Cross multiply
    9,364.68x = 12,923.28 × 5,173.20
  4. Step 4: Simplify right side
    9,364.68x = 66,854,712.10
  5. Step 5: Solve for x
    x = 66,854,712.10/9,364.68
  6. Step 6: Final answer
    x = 7,139.03

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