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Finding the Fourth Proportional to 43,360.80, 65,041.20 and 25,573.20

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Solution

The fourth proportional to 43,360.80, 65,041.20 and 25,573.20 is: 38,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,360.80 : 65,041.20 = 25,573.20 : x
  2. Step 2: Convert to fraction form
    43,360.80/65,041.20 = 25,573.20/x
  3. Step 3: Cross multiply
    43,360.80x = 65,041.20 × 25,573.20
  4. Step 4: Simplify right side
    43,360.80x = 1,663,311,615.84
  5. Step 5: Solve for x
    x = 1,663,311,615.84/43,360.80
  6. Step 6: Final answer
    x = 38,359.80

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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.