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Finding the Fourth Proportional to 49,776.45, 68,691.50 and 27,420.45

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Solution

The fourth proportional to 49,776.45, 68,691.50 and 27,420.45 is: 37,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,776.45 : 68,691.50 = 27,420.45 : x
  2. Step 2: Convert to fraction form
    49,776.45/68,691.50 = 27,420.45/x
  3. Step 3: Cross multiply
    49,776.45x = 68,691.50 × 27,420.45
  4. Step 4: Simplify right side
    49,776.45x = 1,883,551,841.18
  5. Step 5: Solve for x
    x = 1,883,551,841.18/49,776.45
  6. Step 6: Final answer
    x = 37,840.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.