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Finding the Fourth Proportional to 63,638.88, 87,823.47 and 35,346.39

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Solution

The fourth proportional to 63,638.88, 87,823.47 and 35,346.39 is: 48,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,638.88 : 87,823.47 = 35,346.39 : x
  2. Step 2: Convert to fraction form
    63,638.88/87,823.47 = 35,346.39/x
  3. Step 3: Cross multiply
    63,638.88x = 87,823.47 × 35,346.39
  4. Step 4: Simplify right side
    63,638.88x = 3,104,242,621.77
  5. Step 5: Solve for x
    x = 3,104,242,621.77/63,638.88
  6. Step 6: Final answer
    x = 48,779.03

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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.