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Finding the Fourth Proportional to 43,606.60, 65,436.90 and 17,308.60

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Solution

The fourth proportional to 43,606.60, 65,436.90 and 17,308.60 is: 25,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,606.60 : 65,436.90 = 17,308.60 : x
  2. Step 2: Convert to fraction form
    43,606.60/65,436.90 = 17,308.60/x
  3. Step 3: Cross multiply
    43,606.60x = 65,436.90 × 17,308.60
  4. Step 4: Simplify right side
    43,606.60x = 1,132,621,127.34
  5. Step 5: Solve for x
    x = 1,132,621,127.34/43,606.60
  6. Step 6: Final answer
    x = 25,973.62

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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.