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Finding the Fourth Proportional to 43,603.60, 65,405.40 and 26,064.40

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Solution

The fourth proportional to 43,603.60, 65,405.40 and 26,064.40 is: 39,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,603.60 : 65,405.40 = 26,064.40 : x
  2. Step 2: Convert to fraction form
    43,603.60/65,405.40 = 26,064.40/x
  3. Step 3: Cross multiply
    43,603.60x = 65,405.40 × 26,064.40
  4. Step 4: Simplify right side
    43,603.60x = 1,704,752,507.76
  5. Step 5: Solve for x
    x = 1,704,752,507.76/43,603.60
  6. Step 6: Final answer
    x = 39,096.60

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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.