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Finding the Fourth Proportional to 14,362.41, 21,543.45 and 5,603.48

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Solution

The fourth proportional to 14,362.41, 21,543.45 and 5,603.48 is: 8,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,362.41 : 21,543.45 = 5,603.48 : x
  2. Step 2: Convert to fraction form
    14,362.41/21,543.45 = 5,603.48/x
  3. Step 3: Cross multiply
    14,362.41x = 21,543.45 × 5,603.48
  4. Step 4: Simplify right side
    14,362.41x = 120,718,204.50
  5. Step 5: Solve for x
    x = 120,718,204.50/14,362.41
  6. Step 6: Final answer
    x = 8,405.15

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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.