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Finding the Fourth Proportional to 18,577.32, 27,865.98 and 4,726.28

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Solution

The fourth proportional to 18,577.32, 27,865.98 and 4,726.28 is: 7,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.32 : 27,865.98 = 4,726.28 : x
  2. Step 2: Convert to fraction form
    18,577.32/27,865.98 = 4,726.28/x
  3. Step 3: Cross multiply
    18,577.32x = 27,865.98 × 4,726.28
  4. Step 4: Simplify right side
    18,577.32x = 131,702,423.95
  5. Step 5: Solve for x
    x = 131,702,423.95/18,577.32
  6. Step 6: Final answer
    x = 7,089.42

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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.