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Finding the Fourth Proportional to 48,393.78, 66,790.65 and 29,541.84

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Solution

The fourth proportional to 48,393.78, 66,790.65 and 29,541.84 is: 40,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,393.78 : 66,790.65 = 29,541.84 : x
  2. Step 2: Convert to fraction form
    48,393.78/66,790.65 = 29,541.84/x
  3. Step 3: Cross multiply
    48,393.78x = 66,790.65 × 29,541.84
  4. Step 4: Simplify right side
    48,393.78x = 1,973,118,695.80
  5. Step 5: Solve for x
    x = 1,973,118,695.80/48,393.78
  6. Step 6: Final answer
    x = 40,772.15

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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.