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Finding the Fourth Proportional to 43,349.96, 65,018.30 and 13,763.96

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Solution

The fourth proportional to 43,349.96, 65,018.30 and 13,763.96 is: 20,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,349.96 : 65,018.30 = 13,763.96 : x
  2. Step 2: Convert to fraction form
    43,349.96/65,018.30 = 13,763.96/x
  3. Step 3: Cross multiply
    43,349.96x = 65,018.30 × 13,763.96
  4. Step 4: Simplify right side
    43,349.96x = 894,909,280.47
  5. Step 5: Solve for x
    x = 894,909,280.47/43,349.96
  6. Step 6: Final answer
    x = 20,643.83

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1.5x scale

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.