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Finding the Fourth Proportional to 42,104.68, 63,163.50 and 14,015.10

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Solution

The fourth proportional to 42,104.68, 63,163.50 and 14,015.10 is: 21,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,104.68 : 63,163.50 = 14,015.10 : x
  2. Step 2: Convert to fraction form
    42,104.68/63,163.50 = 14,015.10/x
  3. Step 3: Cross multiply
    42,104.68x = 63,163.50 × 14,015.10
  4. Step 4: Simplify right side
    42,104.68x = 885,242,768.85
  5. Step 5: Solve for x
    x = 885,242,768.85/42,104.68
  6. Step 6: Final answer
    x = 21,024.81

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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.