Home / 18,702.13-28,028.80-7,595.82

Finding the Fourth Proportional to 18,702.13, 28,028.80 and 7,595.82

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Solution

The fourth proportional to 18,702.13, 28,028.80 and 7,595.82 is: 11,383.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.13 : 28,028.80 = 7,595.82 : x
  2. Step 2: Convert to fraction form
    18,702.13/28,028.80 = 7,595.82/x
  3. Step 3: Cross multiply
    18,702.13x = 28,028.80 × 7,595.82
  4. Step 4: Simplify right side
    18,702.13x = 212,901,719.62
  5. Step 5: Solve for x
    x = 212,901,719.62/18,702.13
  6. Step 6: Final answer
    x = 11,383.82

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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.