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Finding the Fourth Proportional to 42,127.84, 63,190.88 and 17,166.88

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Solution

The fourth proportional to 42,127.84, 63,190.88 and 17,166.88 is: 25,749.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,127.84 : 63,190.88 = 17,166.88 : x
  2. Step 2: Convert to fraction form
    42,127.84/63,190.88 = 17,166.88/x
  3. Step 3: Cross multiply
    42,127.84x = 63,190.88 × 17,166.88
  4. Step 4: Simplify right side
    42,127.84x = 1,084,790,254.05
  5. Step 5: Solve for x
    x = 1,084,790,254.05/42,127.84
  6. Step 6: Final answer
    x = 25,749.96

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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.