Home / 43,693.28-65,539.86-12,528.50

Finding the Fourth Proportional to 43,693.28, 65,539.86 and 12,528.50

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Solution

The fourth proportional to 43,693.28, 65,539.86 and 12,528.50 is: 18,792.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,693.28 : 65,539.86 = 12,528.50 : x
  2. Step 2: Convert to fraction form
    43,693.28/65,539.86 = 12,528.50/x
  3. Step 3: Cross multiply
    43,693.28x = 65,539.86 × 12,528.50
  4. Step 4: Simplify right side
    43,693.28x = 821,116,136.01
  5. Step 5: Solve for x
    x = 821,116,136.01/43,693.28
  6. Step 6: Final answer
    x = 18,792.73

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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.