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Finding the Fourth Proportional to 10,558.65, 15,837.07 and 6,397.43

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Solution

The fourth proportional to 10,558.65, 15,837.07 and 6,397.43 is: 9,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.65 : 15,837.07 = 6,397.43 : x
  2. Step 2: Convert to fraction form
    10,558.65/15,837.07 = 6,397.43/x
  3. Step 3: Cross multiply
    10,558.65x = 15,837.07 × 6,397.43
  4. Step 4: Simplify right side
    10,558.65x = 101,316,552.63
  5. Step 5: Solve for x
    x = 101,316,552.63/10,558.65
  6. Step 6: Final answer
    x = 9,595.59

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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.