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Finding the Fourth Proportional to 61,945.76, 85,485.36 and 36,453.12

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Solution

The fourth proportional to 61,945.76, 85,485.36 and 36,453.12 is: 50,305.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,945.76 : 85,485.36 = 36,453.12 : x
  2. Step 2: Convert to fraction form
    61,945.76/85,485.36 = 36,453.12/x
  3. Step 3: Cross multiply
    61,945.76x = 85,485.36 × 36,453.12
  4. Step 4: Simplify right side
    61,945.76x = 3,116,208,086.32
  5. Step 5: Solve for x
    x = 3,116,208,086.32/61,945.76
  6. Step 6: Final answer
    x = 50,305.43

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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.