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Finding the Fourth Proportional to 14,573.40, 20,105.10 and 8,604.60

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Solution

The fourth proportional to 14,573.40, 20,105.10 and 8,604.60 is: 11,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573.40 : 20,105.10 = 8,604.60 : x
  2. Step 2: Convert to fraction form
    14,573.40/20,105.10 = 8,604.60/x
  3. Step 3: Cross multiply
    14,573.40x = 20,105.10 × 8,604.60
  4. Step 4: Simplify right side
    14,573.40x = 172,996,343.46
  5. Step 5: Solve for x
    x = 172,996,343.46/14,573.40
  6. Step 6: Final answer
    x = 11,870.69

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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.