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Finding the Fourth Proportional to 14,292.48, 21,438.06 and 3,904.20

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Solution

The fourth proportional to 14,292.48, 21,438.06 and 3,904.20 is: 5,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,292.48 : 21,438.06 = 3,904.20 : x
  2. Step 2: Convert to fraction form
    14,292.48/21,438.06 = 3,904.20/x
  3. Step 3: Cross multiply
    14,292.48x = 21,438.06 × 3,904.20
  4. Step 4: Simplify right side
    14,292.48x = 83,698,473.85
  5. Step 5: Solve for x
    x = 83,698,473.85/14,292.48
  6. Step 6: Final answer
    x = 5,856.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.