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Finding the Fourth Proportional to 17,403.90, 26,102.50 and 4,920.90

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Solution

The fourth proportional to 17,403.90, 26,102.50 and 4,920.90 is: 7,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,403.90 : 26,102.50 = 4,920.90 : x
  2. Step 2: Convert to fraction form
    17,403.90/26,102.50 = 4,920.90/x
  3. Step 3: Cross multiply
    17,403.90x = 26,102.50 × 4,920.90
  4. Step 4: Simplify right side
    17,403.90x = 128,447,792.25
  5. Step 5: Solve for x
    x = 128,447,792.25/17,403.90
  6. Step 6: Final answer
    x = 7,380.40

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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.