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Finding the Fourth Proportional to 12,425.01, 17,150.58 and 7,955.43

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Solution

The fourth proportional to 12,425.01, 17,150.58 and 7,955.43 is: 10,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.01 : 17,150.58 = 7,955.43 : x
  2. Step 2: Convert to fraction form
    12,425.01/17,150.58 = 7,955.43/x
  3. Step 3: Cross multiply
    12,425.01x = 17,150.58 × 7,955.43
  4. Step 4: Simplify right side
    12,425.01x = 136,440,238.65
  5. Step 5: Solve for x
    x = 136,440,238.65/12,425.01
  6. Step 6: Final answer
    x = 10,981.10

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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.