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Finding the Fourth Proportional to 12,612.06, 18,902.52 and 11,055.06

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Solution

The fourth proportional to 12,612.06, 18,902.52 and 11,055.06 is: 16,568.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.06 : 18,902.52 = 11,055.06 : x
  2. Step 2: Convert to fraction form
    12,612.06/18,902.52 = 11,055.06/x
  3. Step 3: Cross multiply
    12,612.06x = 18,902.52 × 11,055.06
  4. Step 4: Simplify right side
    12,612.06x = 208,968,492.75
  5. Step 5: Solve for x
    x = 208,968,492.75/12,612.06
  6. Step 6: Final answer
    x = 16,568.94

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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.