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Finding the Fourth Proportional to 64,871.10, 89,522.07 and 35,063.10

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Solution

The fourth proportional to 64,871.10, 89,522.07 and 35,063.10 is: 48,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,871.10 : 89,522.07 = 35,063.10 : x
  2. Step 2: Convert to fraction form
    64,871.10/89,522.07 = 35,063.10/x
  3. Step 3: Cross multiply
    64,871.10x = 89,522.07 × 35,063.10
  4. Step 4: Simplify right side
    64,871.10x = 3,138,921,292.62
  5. Step 5: Solve for x
    x = 3,138,921,292.62/64,871.10
  6. Step 6: Final answer
    x = 48,387.05

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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.