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Finding the Fourth Proportional to 64,532.70, 96,791.76 and 17,779.50

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Solution

The fourth proportional to 64,532.70, 96,791.76 and 17,779.50 is: 26,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,532.70 : 96,791.76 = 17,779.50 : x
  2. Step 2: Convert to fraction form
    64,532.70/96,791.76 = 17,779.50/x
  3. Step 3: Cross multiply
    64,532.70x = 96,791.76 × 17,779.50
  4. Step 4: Simplify right side
    64,532.70x = 1,720,909,096.92
  5. Step 5: Solve for x
    x = 1,720,909,096.92/64,532.70
  6. Step 6: Final answer
    x = 26,667.24

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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.