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Finding the Fourth Proportional to 64,412.73, 96,573.83 and 28,372.08

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Solution

The fourth proportional to 64,412.73, 96,573.83 and 28,372.08 is: 42,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,412.73 : 96,573.83 = 28,372.08 : x
  2. Step 2: Convert to fraction form
    64,412.73/96,573.83 = 28,372.08/x
  3. Step 3: Cross multiply
    64,412.73x = 96,573.83 × 28,372.08
  4. Step 4: Simplify right side
    64,412.73x = 2,740,000,730.75
  5. Step 5: Solve for x
    x = 2,740,000,730.75/64,412.73
  6. Step 6: Final answer
    x = 42,538.18

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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.