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Finding the Fourth Proportional to 7,653.26, 11,479.80 and 2,459

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Solution

The fourth proportional to 7,653.26, 11,479.80 and 2,459 is: 3,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.26 : 11,479.80 = 2,459 : x
  2. Step 2: Convert to fraction form
    7,653.26/11,479.80 = 2,459/x
  3. Step 3: Cross multiply
    7,653.26x = 11,479.80 × 2,459
  4. Step 4: Simplify right side
    7,653.26x = 28,228,828.20
  5. Step 5: Solve for x
    x = 28,228,828.20/7,653.26
  6. Step 6: Final answer
    x = 3,688.47

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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.