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Finding the Fourth Proportional to 8,287.53, 12,430.89 and 3,093

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Solution

The fourth proportional to 8,287.53, 12,430.89 and 3,093 is: 4,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.53 : 12,430.89 = 3,093 : x
  2. Step 2: Convert to fraction form
    8,287.53/12,430.89 = 3,093/x
  3. Step 3: Cross multiply
    8,287.53x = 12,430.89 × 3,093
  4. Step 4: Simplify right side
    8,287.53x = 38,448,742.77
  5. Step 5: Solve for x
    x = 38,448,742.77/8,287.53
  6. Step 6: Final answer
    x = 4,639.35

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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.