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Finding the Fourth Proportional to 64,478.64, 88,976.52 and 35,796.63

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Solution

The fourth proportional to 64,478.64, 88,976.52 and 35,796.63 is: 49,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.64 : 88,976.52 = 35,796.63 : x
  2. Step 2: Convert to fraction form
    64,478.64/88,976.52 = 35,796.63/x
  3. Step 3: Cross multiply
    64,478.64x = 88,976.52 × 35,796.63
  4. Step 4: Simplify right side
    64,478.64x = 3,185,059,565.13
  5. Step 5: Solve for x
    x = 3,185,059,565.13/64,478.64
  6. Step 6: Final answer
    x = 49,397.13

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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.