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Finding the Fourth Proportional to 64,378.42, 88,839.73 and 35,699.24

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Solution

The fourth proportional to 64,378.42, 88,839.73 and 35,699.24 is: 49,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,378.42 : 88,839.73 = 35,699.24 : x
  2. Step 2: Convert to fraction form
    64,378.42/88,839.73 = 35,699.24/x
  3. Step 3: Cross multiply
    64,378.42x = 88,839.73 × 35,699.24
  4. Step 4: Simplify right side
    64,378.42x = 3,171,510,842.81
  5. Step 5: Solve for x
    x = 3,171,510,842.81/64,378.42
  6. Step 6: Final answer
    x = 49,263.57

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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.