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Finding the Fourth Proportional to 63,598.96, 87,766.90 and 39,739.48

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Solution

The fourth proportional to 63,598.96, 87,766.90 and 39,739.48 is: 54,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,598.96 : 87,766.90 = 39,739.48 : x
  2. Step 2: Convert to fraction form
    63,598.96/87,766.90 = 39,739.48/x
  3. Step 3: Cross multiply
    63,598.96x = 87,766.90 × 39,739.48
  4. Step 4: Simplify right side
    63,598.96x = 3,487,810,967.21
  5. Step 5: Solve for x
    x = 3,487,810,967.21/63,598.96
  6. Step 6: Final answer
    x = 54,840.69

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1.5x scale

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.