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Finding the Fourth Proportional to 9,861.51, 14,792.28 and 3,287.28

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Solution

The fourth proportional to 9,861.51, 14,792.28 and 3,287.28 is: 4,930.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.51 : 14,792.28 = 3,287.28 : x
  2. Step 2: Convert to fraction form
    9,861.51/14,792.28 = 3,287.28/x
  3. Step 3: Cross multiply
    9,861.51x = 14,792.28 × 3,287.28
  4. Step 4: Simplify right side
    9,861.51x = 48,626,366.20
  5. Step 5: Solve for x
    x = 48,626,366.20/9,861.51
  6. Step 6: Final answer
    x = 4,930.93

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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.