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Finding the Fourth Proportional to 62,603.19, 93,919.40 and 20,483.11

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Solution

The fourth proportional to 62,603.19, 93,919.40 and 20,483.11 is: 30,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,603.19 : 93,919.40 = 20,483.11 : x
  2. Step 2: Convert to fraction form
    62,603.19/93,919.40 = 20,483.11/x
  3. Step 3: Cross multiply
    62,603.19x = 93,919.40 × 20,483.11
  4. Step 4: Simplify right side
    62,603.19x = 1,923,761,401.33
  5. Step 5: Solve for x
    x = 1,923,761,401.33/62,603.19
  6. Step 6: Final answer
    x = 30,729.45

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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.