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Finding the Fourth Proportional to 63,989.64, 88,305.48 and 35,695.32

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Solution

The fourth proportional to 63,989.64, 88,305.48 and 35,695.32 is: 49,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.64 : 88,305.48 = 35,695.32 : x
  2. Step 2: Convert to fraction form
    63,989.64/88,305.48 = 35,695.32/x
  3. Step 3: Cross multiply
    63,989.64x = 88,305.48 × 35,695.32
  4. Step 4: Simplify right side
    63,989.64x = 3,152,092,366.35
  5. Step 5: Solve for x
    x = 3,152,092,366.35/63,989.64
  6. Step 6: Final answer
    x = 49,259.42

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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.