Home / 45,002.80-67,498.28-11,725.28

Finding the Fourth Proportional to 45,002.80, 67,498.28 and 11,725.28

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Solution

The fourth proportional to 45,002.80, 67,498.28 and 11,725.28 is: 17,586.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,002.80 : 67,498.28 = 11,725.28 : x
  2. Step 2: Convert to fraction form
    45,002.80/67,498.28 = 11,725.28/x
  3. Step 3: Cross multiply
    45,002.80x = 67,498.28 × 11,725.28
  4. Step 4: Simplify right side
    45,002.80x = 791,436,232.52
  5. Step 5: Solve for x
    x = 791,436,232.52/45,002.80
  6. Step 6: Final answer
    x = 17,586.38

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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.