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Finding the Fourth Proportional to 4,926.33, 7,388.57 and 1,638.54

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Solution

The fourth proportional to 4,926.33, 7,388.57 and 1,638.54 is: 2,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,926.33 : 7,388.57 = 1,638.54 : x
  2. Step 2: Convert to fraction form
    4,926.33/7,388.57 = 1,638.54/x
  3. Step 3: Cross multiply
    4,926.33x = 7,388.57 × 1,638.54
  4. Step 4: Simplify right side
    4,926.33x = 12,106,459.30
  5. Step 5: Solve for x
    x = 12,106,459.30/4,926.33
  6. Step 6: Final answer
    x = 2,457.50

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1.5x scale

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.