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Finding the Fourth Proportional to 12,957.34, 17,882.03 and 7,292.63

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Solution

The fourth proportional to 12,957.34, 17,882.03 and 7,292.63 is: 10,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.34 : 17,882.03 = 7,292.63 : x
  2. Step 2: Convert to fraction form
    12,957.34/17,882.03 = 7,292.63/x
  3. Step 3: Cross multiply
    12,957.34x = 17,882.03 × 7,292.63
  4. Step 4: Simplify right side
    12,957.34x = 130,407,028.44
  5. Step 5: Solve for x
    x = 130,407,028.44/12,957.34
  6. Step 6: Final answer
    x = 10,064.34

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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.