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Finding the Fourth Proportional to 10,362.09, 15,543.14 and 8,935.08

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Solution

The fourth proportional to 10,362.09, 15,543.14 and 8,935.08 is: 13,402.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,362.09 : 15,543.14 = 8,935.08 : x
  2. Step 2: Convert to fraction form
    10,362.09/15,543.14 = 8,935.08/x
  3. Step 3: Cross multiply
    10,362.09x = 15,543.14 × 8,935.08
  4. Step 4: Simplify right side
    10,362.09x = 138,879,154.68
  5. Step 5: Solve for x
    x = 138,879,154.68/10,362.09
  6. Step 6: Final answer
    x = 13,402.62

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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.