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Finding the Fourth Proportional to 9,130.72, 12,600.48 and 5,404

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Solution

The fourth proportional to 9,130.72, 12,600.48 and 5,404 is: 7,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.72 : 12,600.48 = 5,404 : x
  2. Step 2: Convert to fraction form
    9,130.72/12,600.48 = 5,404/x
  3. Step 3: Cross multiply
    9,130.72x = 12,600.48 × 5,404
  4. Step 4: Simplify right side
    9,130.72x = 68,092,993.92
  5. Step 5: Solve for x
    x = 68,092,993.92/9,130.72
  6. Step 6: Final answer
    x = 7,457.57

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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.