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Finding the Fourth Proportional to 64,666.89, 89,239.91 and 36,372.87

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Solution

The fourth proportional to 64,666.89, 89,239.91 and 36,372.87 is: 50,194.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,666.89 : 89,239.91 = 36,372.87 : x
  2. Step 2: Convert to fraction form
    64,666.89/89,239.91 = 36,372.87/x
  3. Step 3: Cross multiply
    64,666.89x = 89,239.91 × 36,372.87
  4. Step 4: Simplify right side
    64,666.89x = 3,245,911,463.38
  5. Step 5: Solve for x
    x = 3,245,911,463.38/64,666.89
  6. Step 6: Final answer
    x = 50,194.33

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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.