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Finding the Fourth Proportional to 43,911.60, 65,870.16 and 17,612.94

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Solution

The fourth proportional to 43,911.60, 65,870.16 and 17,612.94 is: 26,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.60 : 65,870.16 = 17,612.94 : x
  2. Step 2: Convert to fraction form
    43,911.60/65,870.16 = 17,612.94/x
  3. Step 3: Cross multiply
    43,911.60x = 65,870.16 × 17,612.94
  4. Step 4: Simplify right side
    43,911.60x = 1,160,167,175.87
  5. Step 5: Solve for x
    x = 1,160,167,175.87/43,911.60
  6. Step 6: Final answer
    x = 26,420.52

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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.