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Finding the Fourth Proportional to 64,168.20, 88,549.56 and 35,486

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Solution

The fourth proportional to 64,168.20, 88,549.56 and 35,486 is: 48,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,168.20 : 88,549.56 = 35,486 : x
  2. Step 2: Convert to fraction form
    64,168.20/88,549.56 = 35,486/x
  3. Step 3: Cross multiply
    64,168.20x = 88,549.56 × 35,486
  4. Step 4: Simplify right side
    64,168.20x = 3,142,269,686.16
  5. Step 5: Solve for x
    x = 3,142,269,686.16/64,168.20
  6. Step 6: Final answer
    x = 48,969.27

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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.