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Finding the Fourth Proportional to 11,553.39, 15,943.64 and 7,014.51

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Solution

The fourth proportional to 11,553.39, 15,943.64 and 7,014.51 is: 9,680.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.39 : 15,943.64 = 7,014.51 : x
  2. Step 2: Convert to fraction form
    11,553.39/15,943.64 = 7,014.51/x
  3. Step 3: Cross multiply
    11,553.39x = 15,943.64 × 7,014.51
  4. Step 4: Simplify right side
    11,553.39x = 111,836,787.14
  5. Step 5: Solve for x
    x = 111,836,787.14/11,553.39
  6. Step 6: Final answer
    x = 9,680.00

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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.