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Finding the Fourth Proportional to 64,398.99, 96,559.20 and 28,853.76

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Solution

The fourth proportional to 64,398.99, 96,559.20 and 28,853.76 is: 43,263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,398.99 : 96,559.20 = 28,853.76 : x
  2. Step 2: Convert to fraction form
    64,398.99/96,559.20 = 28,853.76/x
  3. Step 3: Cross multiply
    64,398.99x = 96,559.20 × 28,853.76
  4. Step 4: Simplify right side
    64,398.99x = 2,786,095,982.59
  5. Step 5: Solve for x
    x = 2,786,095,982.59/64,398.99
  6. Step 6: Final answer
    x = 43,263.04

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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.