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Finding the Fourth Proportional to 42,274.84, 63,415.88 and 11,110

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Solution

The fourth proportional to 42,274.84, 63,415.88 and 11,110 is: 16,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,274.84 : 63,415.88 = 11,110 : x
  2. Step 2: Convert to fraction form
    42,274.84/63,415.88 = 11,110/x
  3. Step 3: Cross multiply
    42,274.84x = 63,415.88 × 11,110
  4. Step 4: Simplify right side
    42,274.84x = 704,550,426.80
  5. Step 5: Solve for x
    x = 704,550,426.80/42,274.84
  6. Step 6: Final answer
    x = 16,665.95

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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.