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Finding the Fourth Proportional to 9,239.66, 12,750.02 and 5,259.98

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Solution

The fourth proportional to 9,239.66, 12,750.02 and 5,259.98 is: 7,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.66 : 12,750.02 = 5,259.98 : x
  2. Step 2: Convert to fraction form
    9,239.66/12,750.02 = 5,259.98/x
  3. Step 3: Cross multiply
    9,239.66x = 12,750.02 × 5,259.98
  4. Step 4: Simplify right side
    9,239.66x = 67,064,850.20
  5. Step 5: Solve for x
    x = 67,064,850.20/9,239.66
  6. Step 6: Final answer
    x = 7,258.37

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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.