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Finding the Fourth Proportional to 64,971.95, 89,661.29 and 35,163.95

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Solution

The fourth proportional to 64,971.95, 89,661.29 and 35,163.95 is: 48,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,971.95 : 89,661.29 = 35,163.95 : x
  2. Step 2: Convert to fraction form
    64,971.95/89,661.29 = 35,163.95/x
  3. Step 3: Cross multiply
    64,971.95x = 89,661.29 × 35,163.95
  4. Step 4: Simplify right side
    64,971.95x = 3,152,844,494.37
  5. Step 5: Solve for x
    x = 3,152,844,494.37/64,971.95
  6. Step 6: Final answer
    x = 48,526.24

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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.