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Finding the Fourth Proportional to 64,624.93, 96,937.44 and 20,255.16

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Solution

The fourth proportional to 64,624.93, 96,937.44 and 20,255.16 is: 30,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,624.93 : 96,937.44 = 20,255.16 : x
  2. Step 2: Convert to fraction form
    64,624.93/96,937.44 = 20,255.16/x
  3. Step 3: Cross multiply
    64,624.93x = 96,937.44 × 20,255.16
  4. Step 4: Simplify right side
    64,624.93x = 1,963,483,357.19
  5. Step 5: Solve for x
    x = 1,963,483,357.19/64,624.93
  6. Step 6: Final answer
    x = 30,382.75

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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.