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Finding the Fourth Proportional to 7,798.51, 11,697.85 and 1,955.14

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Solution

The fourth proportional to 7,798.51, 11,697.85 and 1,955.14 is: 2,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.51 : 11,697.85 = 1,955.14 : x
  2. Step 2: Convert to fraction form
    7,798.51/11,697.85 = 1,955.14/x
  3. Step 3: Cross multiply
    7,798.51x = 11,697.85 × 1,955.14
  4. Step 4: Simplify right side
    7,798.51x = 22,870,907.65
  5. Step 5: Solve for x
    x = 22,870,907.65/7,798.51
  6. Step 6: Final answer
    x = 2,932.73

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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.