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Finding the Fourth Proportional to 8,266.48, 12,400.16 and 3,336.08

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Solution

The fourth proportional to 8,266.48, 12,400.16 and 3,336.08 is: 5,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.48 : 12,400.16 = 3,336.08 : x
  2. Step 2: Convert to fraction form
    8,266.48/12,400.16 = 3,336.08/x
  3. Step 3: Cross multiply
    8,266.48x = 12,400.16 × 3,336.08
  4. Step 4: Simplify right side
    8,266.48x = 41,367,925.77
  5. Step 5: Solve for x
    x = 41,367,925.77/8,266.48
  6. Step 6: Final answer
    x = 5,004.30

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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.