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Finding the Fourth Proportional to 59,331.78, 89,032.68 and 21,918.33

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Solution

The fourth proportional to 59,331.78, 89,032.68 and 21,918.33 is: 32,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,331.78 : 89,032.68 = 21,918.33 : x
  2. Step 2: Convert to fraction form
    59,331.78/89,032.68 = 21,918.33/x
  3. Step 3: Cross multiply
    59,331.78x = 89,032.68 × 21,918.33
  4. Step 4: Simplify right side
    59,331.78x = 1,951,447,661.02
  5. Step 5: Solve for x
    x = 1,951,447,661.02/59,331.78
  6. Step 6: Final answer
    x = 32,890.43

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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.