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Finding the Fourth Proportional to 64,557.81, 89,087.45 and 36,262.89

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Solution

The fourth proportional to 64,557.81, 89,087.45 and 36,262.89 is: 50,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,557.81 : 89,087.45 = 36,262.89 : x
  2. Step 2: Convert to fraction form
    64,557.81/89,087.45 = 36,262.89/x
  3. Step 3: Cross multiply
    64,557.81x = 89,087.45 × 36,262.89
  4. Step 4: Simplify right side
    64,557.81x = 3,230,568,218.42
  5. Step 5: Solve for x
    x = 3,230,568,218.42/64,557.81
  6. Step 6: Final answer
    x = 50,041.48

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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.