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Finding the Fourth Proportional to 42,651.34, 63,988.34 and 14,571.34

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Solution

The fourth proportional to 42,651.34, 63,988.34 and 14,571.34 is: 21,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,651.34 : 63,988.34 = 14,571.34 : x
  2. Step 2: Convert to fraction form
    42,651.34/63,988.34 = 14,571.34/x
  3. Step 3: Cross multiply
    42,651.34x = 63,988.34 × 14,571.34
  4. Step 4: Simplify right side
    42,651.34x = 932,395,734.63
  5. Step 5: Solve for x
    x = 932,395,734.63/42,651.34
  6. Step 6: Final answer
    x = 21,860.88

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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.