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Finding the Fourth Proportional to 12,236.10, 16,888.89 and 6,934.08

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Solution

The fourth proportional to 12,236.10, 16,888.89 and 6,934.08 is: 9,570.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.10 : 16,888.89 = 6,934.08 : x
  2. Step 2: Convert to fraction form
    12,236.10/16,888.89 = 6,934.08/x
  3. Step 3: Cross multiply
    12,236.10x = 16,888.89 × 6,934.08
  4. Step 4: Simplify right side
    12,236.10x = 117,108,914.37
  5. Step 5: Solve for x
    x = 117,108,914.37/12,236.10
  6. Step 6: Final answer
    x = 9,570.77

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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.