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Finding the Fourth Proportional to 64,405.49, 88,872.08 and 35,718.19

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Solution

The fourth proportional to 64,405.49, 88,872.08 and 35,718.19 is: 49,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,405.49 : 88,872.08 = 35,718.19 : x
  2. Step 2: Convert to fraction form
    64,405.49/88,872.08 = 35,718.19/x
  3. Step 3: Cross multiply
    64,405.49x = 88,872.08 × 35,718.19
  4. Step 4: Simplify right side
    64,405.49x = 3,174,349,438.36
  5. Step 5: Solve for x
    x = 3,174,349,438.36/64,405.49
  6. Step 6: Final answer
    x = 49,286.94

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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.