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Finding the Fourth Proportional to 64,428.54, 96,670.62 and 34,867.23

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Solution

The fourth proportional to 64,428.54, 96,670.62 and 34,867.23 is: 52,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,428.54 : 96,670.62 = 34,867.23 : x
  2. Step 2: Convert to fraction form
    64,428.54/96,670.62 = 34,867.23/x
  3. Step 3: Cross multiply
    64,428.54x = 96,670.62 × 34,867.23
  4. Step 4: Simplify right side
    64,428.54x = 3,370,636,741.78
  5. Step 5: Solve for x
    x = 3,370,636,741.78/64,428.54
  6. Step 6: Final answer
    x = 52,315.90

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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.