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Finding the Fourth Proportional to 58,689.64, 80,983.02 and 33,189.22

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Solution

The fourth proportional to 58,689.64, 80,983.02 and 33,189.22 is: 45,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689.64 : 80,983.02 = 33,189.22 : x
  2. Step 2: Convert to fraction form
    58,689.64/80,983.02 = 33,189.22/x
  3. Step 3: Cross multiply
    58,689.64x = 80,983.02 × 33,189.22
  4. Step 4: Simplify right side
    58,689.64x = 2,687,763,267.04
  5. Step 5: Solve for x
    x = 2,687,763,267.04/58,689.64
  6. Step 6: Final answer
    x = 45,796.21

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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.