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Finding the Fourth Proportional to 70,325.80, 105,539.52 and 27,637.58

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Solution

The fourth proportional to 70,325.80, 105,539.52 and 27,637.58 is: 41,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,325.80 : 105,539.52 = 27,637.58 : x
  2. Step 2: Convert to fraction form
    70,325.80/105,539.52 = 27,637.58/x
  3. Step 3: Cross multiply
    70,325.80x = 105,539.52 × 27,637.58
  4. Step 4: Simplify right side
    70,325.80x = 2,916,856,927.16
  5. Step 5: Solve for x
    x = 2,916,856,927.16/70,325.80
  6. Step 6: Final answer
    x = 41,476.34

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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.