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Finding the Fourth Proportional to 63,987, 88,302.14 and 35,694.48

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Solution

The fourth proportional to 63,987, 88,302.14 and 35,694.48 is: 49,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987 : 88,302.14 = 35,694.48 : x
  2. Step 2: Convert to fraction form
    63,987/88,302.14 = 35,694.48/x
  3. Step 3: Cross multiply
    63,987x = 88,302.14 × 35,694.48
  4. Step 4: Simplify right side
    63,987x = 3,151,898,970.19
  5. Step 5: Solve for x
    x = 3,151,898,970.19/63,987
  6. Step 6: Final answer
    x = 49,258.43

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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.