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Finding the Fourth Proportional to 63,739.76, 87,900.60 and 48,605.84

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Solution

The fourth proportional to 63,739.76, 87,900.60 and 48,605.84 is: 67,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,739.76 : 87,900.60 = 48,605.84 : x
  2. Step 2: Convert to fraction form
    63,739.76/87,900.60 = 48,605.84/x
  3. Step 3: Cross multiply
    63,739.76x = 87,900.60 × 48,605.84
  4. Step 4: Simplify right side
    63,739.76x = 4,272,482,499.50
  5. Step 5: Solve for x
    x = 4,272,482,499.50/63,739.76
  6. Step 6: Final answer
    x = 67,030.10

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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.