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Finding the Fourth Proportional to 14,708.64, 22,060.80 and 7,310.64

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Solution

The fourth proportional to 14,708.64, 22,060.80 and 7,310.64 is: 10,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,708.64 : 22,060.80 = 7,310.64 : x
  2. Step 2: Convert to fraction form
    14,708.64/22,060.80 = 7,310.64/x
  3. Step 3: Cross multiply
    14,708.64x = 22,060.80 × 7,310.64
  4. Step 4: Simplify right side
    14,708.64x = 161,278,566.91
  5. Step 5: Solve for x
    x = 161,278,566.91/14,708.64
  6. Step 6: Final answer
    x = 10,964.89

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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.