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Finding the Fourth Proportional to 65,112.92, 89,851.58 and 36,427.68

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Solution

The fourth proportional to 65,112.92, 89,851.58 and 36,427.68 is: 50,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,112.92 : 89,851.58 = 36,427.68 : x
  2. Step 2: Convert to fraction form
    65,112.92/89,851.58 = 36,427.68/x
  3. Step 3: Cross multiply
    65,112.92x = 89,851.58 × 36,427.68
  4. Step 4: Simplify right side
    65,112.92x = 3,273,084,603.73
  5. Step 5: Solve for x
    x = 3,273,084,603.73/65,112.92
  6. Step 6: Final answer
    x = 50,267.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.