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Finding the Fourth Proportional to 58,385.80, 87,600.30 and 18,944.20

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Solution

The fourth proportional to 58,385.80, 87,600.30 and 18,944.20 is: 28,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,385.80 : 87,600.30 = 18,944.20 : x
  2. Step 2: Convert to fraction form
    58,385.80/87,600.30 = 18,944.20/x
  3. Step 3: Cross multiply
    58,385.80x = 87,600.30 × 18,944.20
  4. Step 4: Simplify right side
    58,385.80x = 1,659,517,603.26
  5. Step 5: Solve for x
    x = 1,659,517,603.26/58,385.80
  6. Step 6: Final answer
    x = 28,423.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.