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Finding the Fourth Proportional to 64,518.35, 89,032.44 and 35,839.99

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Solution

The fourth proportional to 64,518.35, 89,032.44 and 35,839.99 is: 49,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,518.35 : 89,032.44 = 35,839.99 : x
  2. Step 2: Convert to fraction form
    64,518.35/89,032.44 = 35,839.99/x
  3. Step 3: Cross multiply
    64,518.35x = 89,032.44 × 35,839.99
  4. Step 4: Simplify right side
    64,518.35x = 3,190,922,154.57
  5. Step 5: Solve for x
    x = 3,190,922,154.57/64,518.35
  6. Step 6: Final answer
    x = 49,457.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.