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Finding the Fourth Proportional to 64,428.75, 88,911.68 and 36,134.44

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Solution

The fourth proportional to 64,428.75, 88,911.68 and 36,134.44 is: 49,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,428.75 : 88,911.68 = 36,134.44 : x
  2. Step 2: Convert to fraction form
    64,428.75/88,911.68 = 36,134.44/x
  3. Step 3: Cross multiply
    64,428.75x = 88,911.68 × 36,134.44
  4. Step 4: Simplify right side
    64,428.75x = 3,212,773,363.31
  5. Step 5: Solve for x
    x = 3,212,773,363.31/64,428.75
  6. Step 6: Final answer
    x = 49,865.52

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1.5x scale

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.