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Finding the Fourth Proportional to 64,406.76, 88,876.91 and 35,725.28

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Solution

The fourth proportional to 64,406.76, 88,876.91 and 35,725.28 is: 49,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,406.76 : 88,876.91 = 35,725.28 : x
  2. Step 2: Convert to fraction form
    64,406.76/88,876.91 = 35,725.28/x
  3. Step 3: Cross multiply
    64,406.76x = 88,876.91 × 35,725.28
  4. Step 4: Simplify right side
    64,406.76x = 3,175,152,239.46
  5. Step 5: Solve for x
    x = 3,175,152,239.46/64,406.76
  6. Step 6: Final answer
    x = 49,298.43

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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.