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Finding the Fourth Proportional to 70,427.84, 105,635.40 and 26,054.96

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Solution

The fourth proportional to 70,427.84, 105,635.40 and 26,054.96 is: 39,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,427.84 : 105,635.40 = 26,054.96 : x
  2. Step 2: Convert to fraction form
    70,427.84/105,635.40 = 26,054.96/x
  3. Step 3: Cross multiply
    70,427.84x = 105,635.40 × 26,054.96
  4. Step 4: Simplify right side
    70,427.84x = 2,752,326,121.58
  5. Step 5: Solve for x
    x = 2,752,326,121.58/70,427.84
  6. Step 6: Final answer
    x = 39,080.09

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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.