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Finding the Fourth Proportional to 64,986.26, 89,681.06 and 35,178.26

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Solution

The fourth proportional to 64,986.26, 89,681.06 and 35,178.26 is: 48,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,986.26 : 89,681.06 = 35,178.26 : x
  2. Step 2: Convert to fraction form
    64,986.26/89,681.06 = 35,178.26/x
  3. Step 3: Cross multiply
    64,986.26x = 89,681.06 × 35,178.26
  4. Step 4: Simplify right side
    64,986.26x = 3,154,823,469.86
  5. Step 5: Solve for x
    x = 3,154,823,469.86/64,986.26
  6. Step 6: Final answer
    x = 48,546.01

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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.