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Finding the Fourth Proportional to 12,064.76, 18,077.42 and 11,603.44

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Solution

The fourth proportional to 12,064.76, 18,077.42 and 11,603.44 is: 17,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,064.76 : 18,077.42 = 11,603.44 : x
  2. Step 2: Convert to fraction form
    12,064.76/18,077.42 = 11,603.44/x
  3. Step 3: Cross multiply
    12,064.76x = 18,077.42 × 11,603.44
  4. Step 4: Simplify right side
    12,064.76x = 209,760,202.92
  5. Step 5: Solve for x
    x = 209,760,202.92/12,064.76
  6. Step 6: Final answer
    x = 17,386.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.