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Finding the Fourth Proportional to 8,276.58, 11,421.47 and 4,739.58

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Solution

The fourth proportional to 8,276.58, 11,421.47 and 4,739.58 is: 6,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.58 : 11,421.47 = 4,739.58 : x
  2. Step 2: Convert to fraction form
    8,276.58/11,421.47 = 4,739.58/x
  3. Step 3: Cross multiply
    8,276.58x = 11,421.47 × 4,739.58
  4. Step 4: Simplify right side
    8,276.58x = 54,132,982.63
  5. Step 5: Solve for x
    x = 54,132,982.63/8,276.58
  6. Step 6: Final answer
    x = 6,540.50

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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.