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Finding the Fourth Proportional to 10,366.11, 15,543.18 and 7,083.18

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Solution

The fourth proportional to 10,366.11, 15,543.18 and 7,083.18 is: 10,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.11 : 15,543.18 = 7,083.18 : x
  2. Step 2: Convert to fraction form
    10,366.11/15,543.18 = 7,083.18/x
  3. Step 3: Cross multiply
    10,366.11x = 15,543.18 × 7,083.18
  4. Step 4: Simplify right side
    10,366.11x = 110,095,141.71
  5. Step 5: Solve for x
    x = 110,095,141.71/10,366.11
  6. Step 6: Final answer
    x = 10,620.68

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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.