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Finding the Fourth Proportional to 63,935.60, 88,231.16 and 35,640.64

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Solution

The fourth proportional to 63,935.60, 88,231.16 and 35,640.64 is: 49,184.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,935.60 : 88,231.16 = 35,640.64 : x
  2. Step 2: Convert to fraction form
    63,935.60/88,231.16 = 35,640.64/x
  3. Step 3: Cross multiply
    63,935.60x = 88,231.16 × 35,640.64
  4. Step 4: Simplify right side
    63,935.60x = 3,144,615,010.34
  5. Step 5: Solve for x
    x = 3,144,615,010.34/63,935.60
  6. Step 6: Final answer
    x = 49,184.10

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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.