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Finding the Fourth Proportional to 12,440.52, 17,164.44 and 7,133.40

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Solution

The fourth proportional to 12,440.52, 17,164.44 and 7,133.40 is: 9,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.52 : 17,164.44 = 7,133.40 : x
  2. Step 2: Convert to fraction form
    12,440.52/17,164.44 = 7,133.40/x
  3. Step 3: Cross multiply
    12,440.52x = 17,164.44 × 7,133.40
  4. Step 4: Simplify right side
    12,440.52x = 122,440,816.30
  5. Step 5: Solve for x
    x = 122,440,816.30/12,440.52
  6. Step 6: Final answer
    x = 9,842.10

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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.