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Finding the Fourth Proportional to 9,360.14, 12,917.03 and 5,381.01

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Solution

The fourth proportional to 9,360.14, 12,917.03 and 5,381.01 is: 7,425.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.14 : 12,917.03 = 5,381.01 : x
  2. Step 2: Convert to fraction form
    9,360.14/12,917.03 = 5,381.01/x
  3. Step 3: Cross multiply
    9,360.14x = 12,917.03 × 5,381.01
  4. Step 4: Simplify right side
    9,360.14x = 69,506,640.70
  5. Step 5: Solve for x
    x = 69,506,640.70/9,360.14
  6. Step 6: Final answer
    x = 7,425.82

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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.