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Finding the Fourth Proportional to 64,929.70, 97,431.27 and 35,349.58

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Solution

The fourth proportional to 64,929.70, 97,431.27 and 35,349.58 is: 53,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,929.70 : 97,431.27 = 35,349.58 : x
  2. Step 2: Convert to fraction form
    64,929.70/97,431.27 = 35,349.58/x
  3. Step 3: Cross multiply
    64,929.70x = 97,431.27 × 35,349.58
  4. Step 4: Simplify right side
    64,929.70x = 3,444,154,473.37
  5. Step 5: Solve for x
    x = 3,444,154,473.37/64,929.70
  6. Step 6: Final answer
    x = 53,044.36

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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.