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Finding the Fourth Proportional to 14,566.66, 20,100.09 and 8,278.90

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Solution

The fourth proportional to 14,566.66, 20,100.09 and 8,278.90 is: 11,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,566.66 : 20,100.09 = 8,278.90 : x
  2. Step 2: Convert to fraction form
    14,566.66/20,100.09 = 8,278.90/x
  3. Step 3: Cross multiply
    14,566.66x = 20,100.09 × 8,278.90
  4. Step 4: Simplify right side
    14,566.66x = 166,406,635.10
  5. Step 5: Solve for x
    x = 166,406,635.10/14,566.66
  6. Step 6: Final answer
    x = 11,423.80

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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.