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Finding the Fourth Proportional to 89,886.92, 134,877.45 and 33,765.76

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Solution

The fourth proportional to 89,886.92, 134,877.45 and 33,765.76 is: 50,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,886.92 : 134,877.45 = 33,765.76 : x
  2. Step 2: Convert to fraction form
    89,886.92/134,877.45 = 33,765.76/x
  3. Step 3: Cross multiply
    89,886.92x = 134,877.45 × 33,765.76
  4. Step 4: Simplify right side
    89,886.92x = 4,554,239,901.33
  5. Step 5: Solve for x
    x = 4,554,239,901.33/89,886.92
  6. Step 6: Final answer
    x = 50,666.33

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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.