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Finding the Fourth Proportional to 40,643.96, 60,946.50 and 17,257.64

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Solution

The fourth proportional to 40,643.96, 60,946.50 and 17,257.64 is: 25,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,643.96 : 60,946.50 = 17,257.64 : x
  2. Step 2: Convert to fraction form
    40,643.96/60,946.50 = 17,257.64/x
  3. Step 3: Cross multiply
    40,643.96x = 60,946.50 × 17,257.64
  4. Step 4: Simplify right side
    40,643.96x = 1,051,792,756.26
  5. Step 5: Solve for x
    x = 1,051,792,756.26/40,643.96
  6. Step 6: Final answer
    x = 25,878.21

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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.