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Finding the Fourth Proportional to 54,653.16, 82,019.70 and 34,979.88

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Solution

The fourth proportional to 54,653.16, 82,019.70 and 34,979.88 is: 52,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.16 : 82,019.70 = 34,979.88 : x
  2. Step 2: Convert to fraction form
    54,653.16/82,019.70 = 34,979.88/x
  3. Step 3: Cross multiply
    54,653.16x = 82,019.70 × 34,979.88
  4. Step 4: Simplify right side
    54,653.16x = 2,869,039,263.64
  5. Step 5: Solve for x
    x = 2,869,039,263.64/54,653.16
  6. Step 6: Final answer
    x = 52,495.40

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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.