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Finding the Fourth Proportional to 12,068.96, 18,106.08 and 3,749.12

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Solution

The fourth proportional to 12,068.96, 18,106.08 and 3,749.12 is: 5,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068.96 : 18,106.08 = 3,749.12 : x
  2. Step 2: Convert to fraction form
    12,068.96/18,106.08 = 3,749.12/x
  3. Step 3: Cross multiply
    12,068.96x = 18,106.08 × 3,749.12
  4. Step 4: Simplify right side
    12,068.96x = 67,881,866.65
  5. Step 5: Solve for x
    x = 67,881,866.65/12,068.96
  6. Step 6: Final answer
    x = 5,624.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.