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Finding the Fourth Proportional to 64,395.54, 96,621.12 and 34,834.19

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Solution

The fourth proportional to 64,395.54, 96,621.12 and 34,834.19 is: 52,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,395.54 : 96,621.12 = 34,834.19 : x
  2. Step 2: Convert to fraction form
    64,395.54/96,621.12 = 34,834.19/x
  3. Step 3: Cross multiply
    64,395.54x = 96,621.12 × 34,834.19
  4. Step 4: Simplify right side
    64,395.54x = 3,365,717,968.99
  5. Step 5: Solve for x
    x = 3,365,717,968.99/64,395.54
  6. Step 6: Final answer
    x = 52,266.32

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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.