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Finding the Fourth Proportional to 9,844.80, 14,684.08 and 8,266.40

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Solution

The fourth proportional to 9,844.80, 14,684.08 and 8,266.40 is: 12,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,844.80 : 14,684.08 = 8,266.40 : x
  2. Step 2: Convert to fraction form
    9,844.80/14,684.08 = 8,266.40/x
  3. Step 3: Cross multiply
    9,844.80x = 14,684.08 × 8,266.40
  4. Step 4: Simplify right side
    9,844.80x = 121,384,478.91
  5. Step 5: Solve for x
    x = 121,384,478.91/9,844.80
  6. Step 6: Final answer
    x = 12,329.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.