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Finding the Fourth Proportional to 42,149.56, 63,210.84 and 23,438.56

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Solution

The fourth proportional to 42,149.56, 63,210.84 and 23,438.56 is: 35,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,149.56 : 63,210.84 = 23,438.56 : x
  2. Step 2: Convert to fraction form
    42,149.56/63,210.84 = 23,438.56/x
  3. Step 3: Cross multiply
    42,149.56x = 63,210.84 × 23,438.56
  4. Step 4: Simplify right side
    42,149.56x = 1,481,571,065.99
  5. Step 5: Solve for x
    x = 1,481,571,065.99/42,149.56
  6. Step 6: Final answer
    x = 35,150.33

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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.