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Finding the Fourth Proportional to 64,526.52, 96,789.76 and 17,779.40

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Solution

The fourth proportional to 64,526.52, 96,789.76 and 17,779.40 is: 26,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,526.52 : 96,789.76 = 17,779.40 : x
  2. Step 2: Convert to fraction form
    64,526.52/96,789.76 = 17,779.40/x
  3. Step 3: Cross multiply
    64,526.52x = 96,789.76 × 17,779.40
  4. Step 4: Simplify right side
    64,526.52x = 1,720,863,858.94
  5. Step 5: Solve for x
    x = 1,720,863,858.94/64,526.52
  6. Step 6: Final answer
    x = 26,669.09

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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.