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Finding the Fourth Proportional to 64,885.76, 89,542.16 and 36,591.24

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Solution

The fourth proportional to 64,885.76, 89,542.16 and 36,591.24 is: 50,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.76 : 89,542.16 = 36,591.24 : x
  2. Step 2: Convert to fraction form
    64,885.76/89,542.16 = 36,591.24/x
  3. Step 3: Cross multiply
    64,885.76x = 89,542.16 × 36,591.24
  4. Step 4: Simplify right side
    64,885.76x = 3,276,458,666.68
  5. Step 5: Solve for x
    x = 3,276,458,666.68/64,885.76
  6. Step 6: Final answer
    x = 50,495.80

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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.