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Finding the Fourth Proportional to 64,493.70, 96,788.55 and 33,312.90

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Solution

The fourth proportional to 64,493.70, 96,788.55 and 33,312.90 is: 49,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,493.70 : 96,788.55 = 33,312.90 : x
  2. Step 2: Convert to fraction form
    64,493.70/96,788.55 = 33,312.90/x
  3. Step 3: Cross multiply
    64,493.70x = 96,788.55 × 33,312.90
  4. Step 4: Simplify right side
    64,493.70x = 3,224,307,287.30
  5. Step 5: Solve for x
    x = 3,224,307,287.30/64,493.70
  6. Step 6: Final answer
    x = 49,994.14

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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.