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Finding the Fourth Proportional to 42,608.10, 63,912.15 and 36,047.10

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Solution

The fourth proportional to 42,608.10, 63,912.15 and 36,047.10 is: 54,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,608.10 : 63,912.15 = 36,047.10 : x
  2. Step 2: Convert to fraction form
    42,608.10/63,912.15 = 36,047.10/x
  3. Step 3: Cross multiply
    42,608.10x = 63,912.15 × 36,047.10
  4. Step 4: Simplify right side
    42,608.10x = 2,303,847,662.27
  5. Step 5: Solve for x
    x = 2,303,847,662.27/42,608.10
  6. Step 6: Final answer
    x = 54,070.65

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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.