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Finding the Fourth Proportional to 64,897.85, 89,558.98 and 36,603.54

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Solution

The fourth proportional to 64,897.85, 89,558.98 and 36,603.54 is: 50,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,897.85 : 89,558.98 = 36,603.54 : x
  2. Step 2: Convert to fraction form
    64,897.85/89,558.98 = 36,603.54/x
  3. Step 3: Cross multiply
    64,897.85x = 89,558.98 × 36,603.54
  4. Step 4: Simplify right side
    64,897.85x = 3,278,175,258.99
  5. Step 5: Solve for x
    x = 3,278,175,258.99/64,897.85
  6. Step 6: Final answer
    x = 50,512.85

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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.