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Finding the Fourth Proportional to 12,484.36, 18,726.49 and 5,087.08

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Solution

The fourth proportional to 12,484.36, 18,726.49 and 5,087.08 is: 7,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.36 : 18,726.49 = 5,087.08 : x
  2. Step 2: Convert to fraction form
    12,484.36/18,726.49 = 5,087.08/x
  3. Step 3: Cross multiply
    12,484.36x = 18,726.49 × 5,087.08
  4. Step 4: Simplify right side
    12,484.36x = 95,263,152.75
  5. Step 5: Solve for x
    x = 95,263,152.75/12,484.36
  6. Step 6: Final answer
    x = 7,630.60

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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.