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Finding the Fourth Proportional to 28,563.40, 42,845.10 and 24,200.20

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Solution

The fourth proportional to 28,563.40, 42,845.10 and 24,200.20 is: 36,300.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.40 : 42,845.10 = 24,200.20 : x
  2. Step 2: Convert to fraction form
    28,563.40/42,845.10 = 24,200.20/x
  3. Step 3: Cross multiply
    28,563.40x = 42,845.10 × 24,200.20
  4. Step 4: Simplify right side
    28,563.40x = 1,036,859,989.02
  5. Step 5: Solve for x
    x = 1,036,859,989.02/28,563.40
  6. Step 6: Final answer
    x = 36,300.30

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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.