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Finding the Fourth Proportional to 12,496.40, 18,744.60 and 5,098.40

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Solution

The fourth proportional to 12,496.40, 18,744.60 and 5,098.40 is: 7,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.40 : 18,744.60 = 5,098.40 : x
  2. Step 2: Convert to fraction form
    12,496.40/18,744.60 = 5,098.40/x
  3. Step 3: Cross multiply
    12,496.40x = 18,744.60 × 5,098.40
  4. Step 4: Simplify right side
    12,496.40x = 95,567,468.64
  5. Step 5: Solve for x
    x = 95,567,468.64/12,496.40
  6. Step 6: Final answer
    x = 7,647.60

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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.