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Finding the Fourth Proportional to 58,627.68, 80,943.12 and 40,716.96

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Solution

The fourth proportional to 58,627.68, 80,943.12 and 40,716.96 is: 56,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,627.68 : 80,943.12 = 40,716.96 : x
  2. Step 2: Convert to fraction form
    58,627.68/80,943.12 = 40,716.96/x
  3. Step 3: Cross multiply
    58,627.68x = 80,943.12 × 40,716.96
  4. Step 4: Simplify right side
    58,627.68x = 3,295,757,779.32
  5. Step 5: Solve for x
    x = 3,295,757,779.32/58,627.68
  6. Step 6: Final answer
    x = 56,215.05

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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.