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Finding the Fourth Proportional to 7,649.04, 11,465.28 and 3,259.92

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Solution

The fourth proportional to 7,649.04, 11,465.28 and 3,259.92 is: 4,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.04 : 11,465.28 = 3,259.92 : x
  2. Step 2: Convert to fraction form
    7,649.04/11,465.28 = 3,259.92/x
  3. Step 3: Cross multiply
    7,649.04x = 11,465.28 × 3,259.92
  4. Step 4: Simplify right side
    7,649.04x = 37,375,895.58
  5. Step 5: Solve for x
    x = 37,375,895.58/7,649.04
  6. Step 6: Final answer
    x = 4,886.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.