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Finding the Fourth Proportional to 63,047.78, 87,006.21 and 34,752.86

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Solution

The fourth proportional to 63,047.78, 87,006.21 and 34,752.86 is: 47,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,047.78 : 87,006.21 = 34,752.86 : x
  2. Step 2: Convert to fraction form
    63,047.78/87,006.21 = 34,752.86/x
  3. Step 3: Cross multiply
    63,047.78x = 87,006.21 × 34,752.86
  4. Step 4: Simplify right side
    63,047.78x = 3,023,714,635.26
  5. Step 5: Solve for x
    x = 3,023,714,635.26/63,047.78
  6. Step 6: Final answer
    x = 47,959.10

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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.