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Finding the Fourth Proportional to 12,792.74, 17,649.29 and 7,753.32

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Solution

The fourth proportional to 12,792.74, 17,649.29 and 7,753.32 is: 10,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.74 : 17,649.29 = 7,753.32 : x
  2. Step 2: Convert to fraction form
    12,792.74/17,649.29 = 7,753.32/x
  3. Step 3: Cross multiply
    12,792.74x = 17,649.29 × 7,753.32
  4. Step 4: Simplify right side
    12,792.74x = 136,840,593.14
  5. Step 5: Solve for x
    x = 136,840,593.14/12,792.74
  6. Step 6: Final answer
    x = 10,696.74

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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.