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Finding the Fourth Proportional to 64,563.76, 96,878.81 and 26,641.05

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Solution

The fourth proportional to 64,563.76, 96,878.81 and 26,641.05 is: 39,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,563.76 : 96,878.81 = 26,641.05 : x
  2. Step 2: Convert to fraction form
    64,563.76/96,878.81 = 26,641.05/x
  3. Step 3: Cross multiply
    64,563.76x = 96,878.81 × 26,641.05
  4. Step 4: Simplify right side
    64,563.76x = 2,580,953,221.15
  5. Step 5: Solve for x
    x = 2,580,953,221.15/64,563.76
  6. Step 6: Final answer
    x = 39,975.26

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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.