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Finding the Fourth Proportional to 10,005.63, 15,017.54 and 5,329.56

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Solution

The fourth proportional to 10,005.63, 15,017.54 and 5,329.56 is: 7,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.63 : 15,017.54 = 5,329.56 : x
  2. Step 2: Convert to fraction form
    10,005.63/15,017.54 = 5,329.56/x
  3. Step 3: Cross multiply
    10,005.63x = 15,017.54 × 5,329.56
  4. Step 4: Simplify right side
    10,005.63x = 80,036,880.48
  5. Step 5: Solve for x
    x = 80,036,880.48/10,005.63
  6. Step 6: Final answer
    x = 7,999.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.