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Finding the Fourth Proportional to 12,028.55, 16,599.47 and 6,723.45

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Solution

The fourth proportional to 12,028.55, 16,599.47 and 6,723.45 is: 9,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.55 : 16,599.47 = 6,723.45 : x
  2. Step 2: Convert to fraction form
    12,028.55/16,599.47 = 6,723.45/x
  3. Step 3: Cross multiply
    12,028.55x = 16,599.47 × 6,723.45
  4. Step 4: Simplify right side
    12,028.55x = 111,605,672.95
  5. Step 5: Solve for x
    x = 111,605,672.95/12,028.55
  6. Step 6: Final answer
    x = 9,278.40

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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.