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Finding the Fourth Proportional to 58,345.44, 80,494.86 and 38,213.56

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Solution

The fourth proportional to 58,345.44, 80,494.86 and 38,213.56 is: 52,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,345.44 : 80,494.86 = 38,213.56 : x
  2. Step 2: Convert to fraction form
    58,345.44/80,494.86 = 38,213.56/x
  3. Step 3: Cross multiply
    58,345.44x = 80,494.86 × 38,213.56
  4. Step 4: Simplify right side
    58,345.44x = 3,075,995,162.30
  5. Step 5: Solve for x
    x = 3,075,995,162.30/58,345.44
  6. Step 6: Final answer
    x = 52,720.40

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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.