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Finding the Fourth Proportional to 7,907.16, 11,859.08 and 2,976.68

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Solution

The fourth proportional to 7,907.16, 11,859.08 and 2,976.68 is: 4,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.16 : 11,859.08 = 2,976.68 : x
  2. Step 2: Convert to fraction form
    7,907.16/11,859.08 = 2,976.68/x
  3. Step 3: Cross multiply
    7,907.16x = 11,859.08 × 2,976.68
  4. Step 4: Simplify right side
    7,907.16x = 35,300,686.25
  5. Step 5: Solve for x
    x = 35,300,686.25/7,907.16
  6. Step 6: Final answer
    x = 4,464.40

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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.