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Finding the Fourth Proportional to 10,359.03, 15,506.31 and 6,664.62

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Solution

The fourth proportional to 10,359.03, 15,506.31 and 6,664.62 is: 9,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.03 : 15,506.31 = 6,664.62 : x
  2. Step 2: Convert to fraction form
    10,359.03/15,506.31 = 6,664.62/x
  3. Step 3: Cross multiply
    10,359.03x = 15,506.31 × 6,664.62
  4. Step 4: Simplify right side
    10,359.03x = 103,343,663.75
  5. Step 5: Solve for x
    x = 103,343,663.75/10,359.03
  6. Step 6: Final answer
    x = 9,976.19

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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.