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Finding the Fourth Proportional to 7,907.70, 11,853.45 and 4,619.10

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Solution

The fourth proportional to 7,907.70, 11,853.45 and 4,619.10 is: 6,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.70 : 11,853.45 = 4,619.10 : x
  2. Step 2: Convert to fraction form
    7,907.70/11,853.45 = 4,619.10/x
  3. Step 3: Cross multiply
    7,907.70x = 11,853.45 × 4,619.10
  4. Step 4: Simplify right side
    7,907.70x = 54,752,270.90
  5. Step 5: Solve for x
    x = 54,752,270.90/7,907.70
  6. Step 6: Final answer
    x = 6,923.92

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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.