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Finding the Fourth Proportional to 12,083.68, 16,675.68 and 6,779.68

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Solution

The fourth proportional to 12,083.68, 16,675.68 and 6,779.68 is: 9,356.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.68 : 16,675.68 = 6,779.68 : x
  2. Step 2: Convert to fraction form
    12,083.68/16,675.68 = 6,779.68/x
  3. Step 3: Cross multiply
    12,083.68x = 16,675.68 × 6,779.68
  4. Step 4: Simplify right side
    12,083.68x = 113,055,774.18
  5. Step 5: Solve for x
    x = 113,055,774.18/12,083.68
  6. Step 6: Final answer
    x = 9,356.07

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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.