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Finding the Fourth Proportional to 13,060.58, 19,580.06 and 6,491.34

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Solution

The fourth proportional to 13,060.58, 19,580.06 and 6,491.34 is: 9,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.58 : 19,580.06 = 6,491.34 : x
  2. Step 2: Convert to fraction form
    13,060.58/19,580.06 = 6,491.34/x
  3. Step 3: Cross multiply
    13,060.58x = 19,580.06 × 6,491.34
  4. Step 4: Simplify right side
    13,060.58x = 127,100,842.91
  5. Step 5: Solve for x
    x = 127,100,842.91/13,060.58
  6. Step 6: Final answer
    x = 9,731.64

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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.