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Finding the Fourth Proportional to 71,909.42, 107,813.03 and 27,498.74

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Solution

The fourth proportional to 71,909.42, 107,813.03 and 27,498.74 is: 41,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,909.42 : 107,813.03 = 27,498.74 : x
  2. Step 2: Convert to fraction form
    71,909.42/107,813.03 = 27,498.74/x
  3. Step 3: Cross multiply
    71,909.42x = 107,813.03 × 27,498.74
  4. Step 4: Simplify right side
    71,909.42x = 2,964,721,804.02
  5. Step 5: Solve for x
    x = 2,964,721,804.02/71,909.42
  6. Step 6: Final answer
    x = 41,228.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.