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Finding the Fourth Proportional to 12,792.87, 17,651.07 and 7,203.87

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Solution

The fourth proportional to 12,792.87, 17,651.07 and 7,203.87 is: 9,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.87 : 17,651.07 = 7,203.87 : x
  2. Step 2: Convert to fraction form
    12,792.87/17,651.07 = 7,203.87/x
  3. Step 3: Cross multiply
    12,792.87x = 17,651.07 × 7,203.87
  4. Step 4: Simplify right side
    12,792.87x = 127,156,013.64
  5. Step 5: Solve for x
    x = 127,156,013.64/12,792.87
  6. Step 6: Final answer
    x = 9,939.60

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1.5x scale

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.