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Finding the Fourth Proportional to 15,867.60, 23,801.40 and 8,494.80

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Solution

The fourth proportional to 15,867.60, 23,801.40 and 8,494.80 is: 12,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.60 : 23,801.40 = 8,494.80 : x
  2. Step 2: Convert to fraction form
    15,867.60/23,801.40 = 8,494.80/x
  3. Step 3: Cross multiply
    15,867.60x = 23,801.40 × 8,494.80
  4. Step 4: Simplify right side
    15,867.60x = 202,188,132.72
  5. Step 5: Solve for x
    x = 202,188,132.72/15,867.60
  6. Step 6: Final answer
    x = 12,742.20

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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.