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Finding the Fourth Proportional to 12,208.94, 16,848.35 and 6,619.94

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Solution

The fourth proportional to 12,208.94, 16,848.35 and 6,619.94 is: 9,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.94 : 16,848.35 = 6,619.94 : x
  2. Step 2: Convert to fraction form
    12,208.94/16,848.35 = 6,619.94/x
  3. Step 3: Cross multiply
    12,208.94x = 16,848.35 × 6,619.94
  4. Step 4: Simplify right side
    12,208.94x = 111,535,066.10
  5. Step 5: Solve for x
    x = 111,535,066.10/12,208.94
  6. Step 6: Final answer
    x = 9,135.52

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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.