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Finding the Fourth Proportional to 72,832.93, 100,507.86 and 40,567.43

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Solution

The fourth proportional to 72,832.93, 100,507.86 and 40,567.43 is: 55,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,832.93 : 100,507.86 = 40,567.43 : x
  2. Step 2: Convert to fraction form
    72,832.93/100,507.86 = 40,567.43/x
  3. Step 3: Cross multiply
    72,832.93x = 100,507.86 × 40,567.43
  4. Step 4: Simplify right side
    72,832.93x = 4,077,345,826.27
  5. Step 5: Solve for x
    x = 4,077,345,826.27/72,832.93
  6. Step 6: Final answer
    x = 55,982.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.