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Finding the Fourth Proportional to 64,929.25, 89,609.25 and 38,094.36

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Solution

The fourth proportional to 64,929.25, 89,609.25 and 38,094.36 is: 52,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,929.25 : 89,609.25 = 38,094.36 : x
  2. Step 2: Convert to fraction form
    64,929.25/89,609.25 = 38,094.36/x
  3. Step 3: Cross multiply
    64,929.25x = 89,609.25 × 38,094.36
  4. Step 4: Simplify right side
    64,929.25x = 3,413,607,028.83
  5. Step 5: Solve for x
    x = 3,413,607,028.83/64,929.25
  6. Step 6: Final answer
    x = 52,574.26

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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.