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Finding the Fourth Proportional to 64,644.69, 89,210.21 and 36,350.13

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Solution

The fourth proportional to 64,644.69, 89,210.21 and 36,350.13 is: 50,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,644.69 : 89,210.21 = 36,350.13 : x
  2. Step 2: Convert to fraction form
    64,644.69/89,210.21 = 36,350.13/x
  3. Step 3: Cross multiply
    64,644.69x = 89,210.21 × 36,350.13
  4. Step 4: Simplify right side
    64,644.69x = 3,242,802,549.08
  5. Step 5: Solve for x
    x = 3,242,802,549.08/64,644.69
  6. Step 6: Final answer
    x = 50,163.48

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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.