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Finding the Fourth Proportional to 53,708, 74,118.04 and 29,836.88

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Solution

The fourth proportional to 53,708, 74,118.04 and 29,836.88 is: 41,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,708 : 74,118.04 = 29,836.88 : x
  2. Step 2: Convert to fraction form
    53,708/74,118.04 = 29,836.88/x
  3. Step 3: Cross multiply
    53,708x = 74,118.04 × 29,836.88
  4. Step 4: Simplify right side
    53,708x = 2,211,451,065.32
  5. Step 5: Solve for x
    x = 2,211,451,065.32/53,708
  6. Step 6: Final answer
    x = 41,175.45

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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.