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Finding the Fourth Proportional to 12,099.36, 16,700.95 and 7,065.62

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Solution

The fourth proportional to 12,099.36, 16,700.95 and 7,065.62 is: 9,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.36 : 16,700.95 = 7,065.62 : x
  2. Step 2: Convert to fraction form
    12,099.36/16,700.95 = 7,065.62/x
  3. Step 3: Cross multiply
    12,099.36x = 16,700.95 × 7,065.62
  4. Step 4: Simplify right side
    12,099.36x = 118,002,566.34
  5. Step 5: Solve for x
    x = 118,002,566.34/12,099.36
  6. Step 6: Final answer
    x = 9,752.79

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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.