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Finding the Fourth Proportional to 58,418.55, 87,627.80 and 14,045.28

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Solution

The fourth proportional to 58,418.55, 87,627.80 and 14,045.28 is: 21,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,418.55 : 87,627.80 = 14,045.28 : x
  2. Step 2: Convert to fraction form
    58,418.55/87,627.80 = 14,045.28/x
  3. Step 3: Cross multiply
    58,418.55x = 87,627.80 × 14,045.28
  4. Step 4: Simplify right side
    58,418.55x = 1,230,756,916.56
  5. Step 5: Solve for x
    x = 1,230,756,916.56/58,418.55
  6. Step 6: Final answer
    x = 21,067.91

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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.