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Finding the Fourth Proportional to 63,348, 87,420.87 and 35,054.30

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Solution

The fourth proportional to 63,348, 87,420.87 and 35,054.30 is: 48,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,348 : 87,420.87 = 35,054.30 : x
  2. Step 2: Convert to fraction form
    63,348/87,420.87 = 35,054.30/x
  3. Step 3: Cross multiply
    63,348x = 87,420.87 × 35,054.30
  4. Step 4: Simplify right side
    63,348x = 3,064,476,966.14
  5. Step 5: Solve for x
    x = 3,064,476,966.14/63,348
  6. Step 6: Final answer
    x = 48,375.28

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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.