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Finding the Fourth Proportional to 43,465.60, 65,174.10 and 20,063.08

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Solution

The fourth proportional to 43,465.60, 65,174.10 and 20,063.08 is: 30,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,465.60 : 65,174.10 = 20,063.08 : x
  2. Step 2: Convert to fraction form
    43,465.60/65,174.10 = 20,063.08/x
  3. Step 3: Cross multiply
    43,465.60x = 65,174.10 × 20,063.08
  4. Step 4: Simplify right side
    43,465.60x = 1,307,593,182.23
  5. Step 5: Solve for x
    x = 1,307,593,182.23/43,465.60
  6. Step 6: Final answer
    x = 30,083.40

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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.