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Finding the Fourth Proportional to 12,371.14, 17,071.79 and 7,064.92

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Solution

The fourth proportional to 12,371.14, 17,071.79 and 7,064.92 is: 9,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.14 : 17,071.79 = 7,064.92 : x
  2. Step 2: Convert to fraction form
    12,371.14/17,071.79 = 7,064.92/x
  3. Step 3: Cross multiply
    12,371.14x = 17,071.79 × 7,064.92
  4. Step 4: Simplify right side
    12,371.14x = 120,610,830.61
  5. Step 5: Solve for x
    x = 120,610,830.61/12,371.14
  6. Step 6: Final answer
    x = 9,749.37

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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.