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Finding the Fourth Proportional to 58,509.08, 80,742.42 and 31,651.62

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Solution

The fourth proportional to 58,509.08, 80,742.42 and 31,651.62 is: 43,679.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,509.08 : 80,742.42 = 31,651.62 : x
  2. Step 2: Convert to fraction form
    58,509.08/80,742.42 = 31,651.62/x
  3. Step 3: Cross multiply
    58,509.08x = 80,742.42 × 31,651.62
  4. Step 4: Simplify right side
    58,509.08x = 2,555,628,395.72
  5. Step 5: Solve for x
    x = 2,555,628,395.72/58,509.08
  6. Step 6: Final answer
    x = 43,679.18

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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.