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Finding the Fourth Proportional to 70,436.44, 105,654.66 and 23,689.36

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Solution

The fourth proportional to 70,436.44, 105,654.66 and 23,689.36 is: 35,534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,436.44 : 105,654.66 = 23,689.36 : x
  2. Step 2: Convert to fraction form
    70,436.44/105,654.66 = 23,689.36/x
  3. Step 3: Cross multiply
    70,436.44x = 105,654.66 × 23,689.36
  4. Step 4: Simplify right side
    70,436.44x = 2,502,891,276.42
  5. Step 5: Solve for x
    x = 2,502,891,276.42/70,436.44
  6. Step 6: Final answer
    x = 35,534.04

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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.