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Finding the Fourth Proportional to 43,817.70, 65,726.55 and 43,356.90

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Solution

The fourth proportional to 43,817.70, 65,726.55 and 43,356.90 is: 65,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,817.70 : 65,726.55 = 43,356.90 : x
  2. Step 2: Convert to fraction form
    43,817.70/65,726.55 = 43,356.90/x
  3. Step 3: Cross multiply
    43,817.70x = 65,726.55 × 43,356.90
  4. Step 4: Simplify right side
    43,817.70x = 2,849,699,455.70
  5. Step 5: Solve for x
    x = 2,849,699,455.70/43,817.70
  6. Step 6: Final answer
    x = 65,035.35

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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.