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Finding the Fourth Proportional to 59,628.84, 89,437.78 and 20,181.43

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Solution

The fourth proportional to 59,628.84, 89,437.78 and 20,181.43 is: 30,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,628.84 : 89,437.78 = 20,181.43 : x
  2. Step 2: Convert to fraction form
    59,628.84/89,437.78 = 20,181.43/x
  3. Step 3: Cross multiply
    59,628.84x = 89,437.78 × 20,181.43
  4. Step 4: Simplify right side
    59,628.84x = 1,804,982,296.43
  5. Step 5: Solve for x
    x = 1,804,982,296.43/59,628.84
  6. Step 6: Final answer
    x = 30,270.29

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1.5x scale

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.