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Finding the Fourth Proportional to 64,590.96, 96,911.36 and 22,475.40

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Solution

The fourth proportional to 64,590.96, 96,911.36 and 22,475.40 is: 33,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,590.96 : 96,911.36 = 22,475.40 : x
  2. Step 2: Convert to fraction form
    64,590.96/96,911.36 = 22,475.40/x
  3. Step 3: Cross multiply
    64,590.96x = 96,911.36 × 22,475.40
  4. Step 4: Simplify right side
    64,590.96x = 2,178,121,580.54
  5. Step 5: Solve for x
    x = 2,178,121,580.54/64,590.96
  6. Step 6: Final answer
    x = 33,721.77

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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.