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Finding the Fourth Proportional to 64,896, 97,354.54 and 25,431.72

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Solution

The fourth proportional to 64,896, 97,354.54 and 25,431.72 is: 38,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,896 : 97,354.54 = 25,431.72 : x
  2. Step 2: Convert to fraction form
    64,896/97,354.54 = 25,431.72/x
  3. Step 3: Cross multiply
    64,896x = 97,354.54 × 25,431.72
  4. Step 4: Simplify right side
    64,896x = 2,475,893,402.01
  5. Step 5: Solve for x
    x = 2,475,893,402.01/64,896
  6. Step 6: Final answer
    x = 38,151.71

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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.