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Finding the Fourth Proportional to 7,065.36, 9,750.12 and 4,081.08

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Solution

The fourth proportional to 7,065.36, 9,750.12 and 4,081.08 is: 5,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.36 : 9,750.12 = 4,081.08 : x
  2. Step 2: Convert to fraction form
    7,065.36/9,750.12 = 4,081.08/x
  3. Step 3: Cross multiply
    7,065.36x = 9,750.12 × 4,081.08
  4. Step 4: Simplify right side
    7,065.36x = 39,791,019.73
  5. Step 5: Solve for x
    x = 39,791,019.73/7,065.36
  6. Step 6: Final answer
    x = 5,631.85

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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.