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Finding the Fourth Proportional to 35,479.69, 48,962.31 and 19,564.71

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Solution

The fourth proportional to 35,479.69, 48,962.31 and 19,564.71 is: 26,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.69 : 48,962.31 = 19,564.71 : x
  2. Step 2: Convert to fraction form
    35,479.69/48,962.31 = 19,564.71/x
  3. Step 3: Cross multiply
    35,479.69x = 48,962.31 × 19,564.71
  4. Step 4: Simplify right side
    35,479.69x = 957,933,298.26
  5. Step 5: Solve for x
    x = 957,933,298.26/35,479.69
  6. Step 6: Final answer
    x = 26,999.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.