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Finding the Fourth Proportional to 8,367.70, 11,546.98 and 4,830.70

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Solution

The fourth proportional to 8,367.70, 11,546.98 and 4,830.70 is: 6,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.70 : 11,546.98 = 4,830.70 : x
  2. Step 2: Convert to fraction form
    8,367.70/11,546.98 = 4,830.70/x
  3. Step 3: Cross multiply
    8,367.70x = 11,546.98 × 4,830.70
  4. Step 4: Simplify right side
    8,367.70x = 55,779,996.29
  5. Step 5: Solve for x
    x = 55,779,996.29/8,367.70
  6. Step 6: Final answer
    x = 6,666.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.