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Finding the Fourth Proportional to 8,275.44, 12,407.68 and 3,274.50

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Solution

The fourth proportional to 8,275.44, 12,407.68 and 3,274.50 is: 4,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.44 : 12,407.68 = 3,274.50 : x
  2. Step 2: Convert to fraction form
    8,275.44/12,407.68 = 3,274.50/x
  3. Step 3: Cross multiply
    8,275.44x = 12,407.68 × 3,274.50
  4. Step 4: Simplify right side
    8,275.44x = 40,628,948.16
  5. Step 5: Solve for x
    x = 40,628,948.16/8,275.44
  6. Step 6: Final answer
    x = 4,909.58

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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.